# Tightly help centre > The knowledge base behind Ask Tightly: one article per concept, page, act and refusal of the platform. ## Commitments - [A colourway the style is not offered in](https://docs.tightly.io/help/commitments/a-colourway-the-style-is-not-offered-in): Where a colour split names a colourway the style does not come in: - [A size split that does not total](https://docs.tightly.io/help/commitments/a-size-split-that-does-not-total): Where the shares of a size split do not add up to the whole buy: - [Decline a scenario](https://docs.tightly.io/help/commitments/act-decline-a-scenario): Decline a scenario records that a scenario was not taken, with a stated reason - [Set a colour split](https://docs.tightly.io/help/commitments/act-set-a-colour-split): Set a colour split records how one style's buy divides across its colourways, keyed on your own colourway names: a share per colourway in basis points, summing to ten thousand, on one commitment - [Set a size split](https://docs.tightly.io/help/commitments/act-set-a-size-split): Set a size split records how one style's buy divides across its sizes: a share per size in basis points, summing to ten thousand, on one commitment - [Set a worked depth](https://docs.tightly.io/help/commitments/act-set-a-worked-depth): Set a worked depth records how many units of one style a person decided to buy on one commitment: one row per style, or one per declared channel leg where the depth is set channel by channel - [Set colour depths](https://docs.tightly.io/help/commitments/act-set-colour-depths): Set colour depths records units per colourway for one style on one commitment, and writes the style's depth and its colour split in one transaction, so a half-written pair cannot exist: a failure anywhere leaves neither changed - [The agreed book](https://docs.tightly.io/help/commitments/agreed-book): What has one account confirmed for this commitment, style by style, at what price, and how does that compare with last time and the money declared? - [Buy envelope](https://docs.tightly.io/help/commitments/buy-envelope): The buy envelope is the money a commitment may place in total, at cost, held in dollars (a Bench group reads its figures in the commitment's currency at the rate served for it): the living envelope every other money figure on the commitment is read against - [Capital](https://docs.tightly.io/help/commitments/capital): How much cash is in this book's stock, how old is it, and which way is it moving? - [Channel scope on money](https://docs.tightly.io/help/commitments/channel-scope-on-money): On [Buy plan](../commitments/the-desk), where the styles of a commitment scoped to a channel would be worked: - [Release the chase](https://docs.tightly.io/help/commitments/chase-release): Which style has won, how much of the reserve goes to chasing it, and what does the release leave held? - [Chase reserve](https://docs.tightly.io/help/commitments/chase-reserve): The chase reserve is the part of the buy envelope held back so a planner can react in season: chase a style that is selling ahead, rather than spend every dollar before the season has told you anything - [Close a commitment](https://docs.tightly.io/help/commitments/close): The window has ended - [Finish clean](https://docs.tightly.io/help/commitments/finish-clean): What is still here at close, where does it go, and what does not come back? - [Margin floor](https://docs.tightly.io/help/commitments/margin-floor): The margin floor is the blended margin the season may not close under, declared as a percentage with a basis - [Open to commit and free to commit](https://docs.tightly.io/help/commitments/open-to-commit): Open to commit is the rung of the ladder that says what room is left: the buy envelope as declared, less the chase reserve still held, less what has been placed - [Retire a commitment](https://docs.tightly.io/help/commitments/retire): What stops being defended if this commitment ends now, and where does its scope go? - [Selling periods](https://docs.tightly.io/help/commitments/selling-periods): Which windows has this tenant declared, when does each open and close, and what is each measured against? - [Stage and status](https://docs.tightly.io/help/commitments/stage-and-status): A commitment lives on two axes at once - [All commitments](https://docs.tightly.io/help/commitments/the-book): What does this book hold, what needs a person this week, and what is waiting on a second signature? - [Commitments: the promise Tightly keeps](https://docs.tightly.io/help/commitments/the-commitment): A commitment sets the commercial targets and budget for a defined part of the business - [The five terms of a plan](https://docs.tightly.io/help/commitments/the-five-terms): Under every commitment sits a plan of record: the month by month sheet that says what still has to arrive - [The ladder: declared, held, open to commit, placed](https://docs.tightly.io/help/commitments/the-ladder): The ladder is the live money position of a commitment against its buy envelope, in four terms that tie in cents: declared, held for the chase, open to commit, placed - [Two signatures](https://docs.tightly.io/help/commitments/two-signatures): A commitment is declared by someone who holds the Commitments door and armed by a signature ## Finance - [The merch plan](https://docs.tightly.io/help/finance/buy-plan): What annual sales plan, receipts and cover should the company work towards? - [The cash gate](https://docs.tightly.io/help/finance/cash-gate): **Cash & payments** opens approved company funding when available, keeping your existing source choice - [Finance declarations](https://docs.tightly.io/help/finance/declarations): Which company terms have we declared for this fiscal year, and what stays unmeasured or ungraded until we do? - [Investment review](https://docs.tightly.io/help/finance/investment-review): What did each closed season's buy cost, what came back from it, and how much of that can be trusted? ## Demand - [Confidence as a word](https://docs.tightly.io/help/demand/confidence): Confidence is always a word and never a percentage - [Demand signals](https://docs.tightly.io/help/demand/demand-signals): Which products need attention, what evidence explains the change, and what should I do next? ## Product - [Bill of materials](https://docs.tightly.io/help/product/bills-of-materials): Which variants are made rather than bought, from what, in what run, how long until ready to sell, and where? A bill of materials is the components a product is made from, at an amount per finished unit, made in runs of a batch at one warehouse - [Capital quadrants](https://docs.tightly.io/help/product/capital-quadrants): Capital quadrants sort every variant at every warehouse into one of four, a Winner, a Traffic Driver, a Sleeper or a Bleeder, by how fast it turns and how much margin it earns - [Families](https://docs.tightly.io/help/product/families): Which families exist and how does each vary, what has arrived that is on no product yet, where does each arrival belong, and what was done here? Families is the desk of the [families and attributes engine](../engines/families-and-attributes.md) - [Health and tags](https://docs.tightly.io/help/product/health-and-tags): Health is the replenishment engine's word on one variant at one warehouse: whether the stock there is Covered, holds more than it can sell, which reads Overstocked, or is out or due a reorder, which reads Needs ordering; where nobody measured it, Not measured - [Movements](https://docs.tightly.io/help/product/movements): What moved stock, across the book or at one product and warehouse, and which document caused each change? - [Catalogue](https://docs.tightly.io/help/product/products): What is in my catalogue, what is each product missing for planning and for its family, and which values are mine rather than the connector's? The Catalogue is the Product zone's front door - [Stock on hand](https://docs.tightly.io/help/product/stock-on-hand): This is the classic table behind Inventory - [The position](https://docs.tightly.io/help/product/the-position): Behind one stock figure, what is on hand, what is held, what is coming, and what can be promised? ## Supply - [Draft a purchase order](https://docs.tightly.io/help/supply/act-draft-a-purchase-order): Drafting a purchase order creates one order per supplier and warehouse from a set of lines and lands it Drafted - [Lead time](https://docs.tightly.io/help/supply/lead-time): Lead time is how long a supplier takes, in days, from the day you order to the day the goods land at one of your warehouses - [Order status words](https://docs.tightly.io/help/supply/order-status-words): Every order in the Buy book stands in one of seven words: Drafted, Confirmed, In production, Shipped, Delivered, Completed or Cancelled - [Size pack](https://docs.tightly.io/help/supply/size-pack): A size pack is the sizes a line ships in, as one unit - [The supplier](https://docs.tightly.io/help/supply/supplier): How reliable is this supplier, on what terms do we buy from them, what needs my attention, what do they supply and in what packs, and what is on order with them? - [Suppliers](https://docs.tightly.io/help/supply/suppliers): Who do I buy from, on what terms, where, and which records are too incomplete for replenishment to read? - [Variant suppliers](https://docs.tightly.io/help/supply/variant-suppliers): For this variant and each supplier that carries it: what is the minimum quantity, batch size, unit cost, cadence and per-warehouse lead time, and which supplier is the default? ## Replenishment - [The Budget](https://docs.tightly.io/help/replenishment/budget): What can each month of this fiscal year still spend on stock once what has been spent, what is on order and what replenishment is asking for are counted, and where did the year's buying money go? - [Cover, and why cover is a minimum](https://docs.tightly.io/help/replenishment/cover): Cover is how long the stock on hand lasts at the rate it is selling: days of cover on one line, weeks of cover on a book or a ledger - [Smart Replenishment](https://docs.tightly.io/help/replenishment/smart-replenishment): What do I need to order over the coming period, what is it worth, how much of it is already too late to save, and which lines do I accept onto the Bench, move from another warehouse, or make in-house? ## Tightly Connect - [Close a seat or a showing](https://docs.tightly.io/help/connect/act-close-a-seat-or-showing): Two separate closes on the buyer portal, and both only narrow what a buyer can reach - [Declare how sell-out reads](https://docs.tightly.io/help/connect/act-declare-sell-out-reporting): Four answers one account's weekly report needs before the first file from them can be read: what the figures cover (each store, their distribution centres, or the whole account), the currency, whether prices include tax, and what a missing row means (the product sold none, or the account did not report it) - [Import an account's sell-out file in Ask](https://docs.tightly.io/help/connect/act-import-sell-out-file): On an account's page, attach a CSV, TSV or XLSX export from that account - [Claims](https://docs.tightly.io/help/connect/portal-claims): Claims answers what you have asked this brand to change on your orders, and what they decided - [Sell-in only](https://docs.tightly.io/help/connect/sell-in-only): The word under a demand figure, on the account's Book and, where an active Commitment declares the season, on Accounts: ## Ask Tightly - [Save and fire a skill](https://docs.tightly.io/help/ask/act-save-and-fire-a-skill): Two acts share one door - [Update saved insight](https://docs.tightly.io/help/ask/act-update-saved-insight): Update saved insight writes the question on your screen to the kept answer's record: the period, the grain, the breakdown, the filters, the measures, their order and how many rows - [Ask Tightly: answers, the Board, the workspace](https://docs.tightly.io/help/ask/ask-tightly): What can Ask Tightly see, what did I ask last, and what does an answer rest on? Ask Tightly is the one assistant on every page of Tightly - [Connecting an AI agent](https://docs.tightly.io/help/ask/connect-an-ai-agent): An AI agent is an assistant that runs outside Tightly, such as Claude, ChatGPT, Cursor or VS Code, and reads your organisation through Tightly's MCP server - [The Board on Lite](https://docs.tightly.io/help/ask/lite-board): How did my store trade, what moved, and where is the money sitting? On Tightly Lite the Board is ten charts that are always there - [Mark an internal transfer](https://docs.tightly.io/help/ask/mark-intercompany-transfer): Ask Tightly to preview an internal transfer using the exact NetSuite sales order ID and the purchase order that matches it - [New skill](https://docs.tightly.io/help/ask/new-skill): How does a skill get written, and where does what it builds appear? Write a skill is a conversation with Ask Tightly beside the skill it is building - [The knowledge base has no article](https://docs.tightly.io/help/ask/no-article): > The knowledge base has no article for that - [A page act asked of Ask](https://docs.tightly.io/help/ask/page-acts): What Tightly answers when Ask Tightly tries to perform a page's own act itself, instead of offering it to you: - [A read-only seat asks and performs no act](https://docs.tightly.io/help/ask/read-only-seat): When a viewer asks Ask Tightly to fire a skill, the skill is not started and Ask Tightly relays the refusal it was given: - [Your company](https://docs.tightly.io/help/ask/setup-company): What should Tightly know about your company before it reads any of your data? It is the second card of setup and the last one before you connect anything - [Setup: Connect](https://docs.tightly.io/help/ask/setup-connect): Where am I in setup, what does this step need, and can I leave and come back? Setup is one wizard in three phases, Connect, Review and Finish - [Setup: Finish](https://docs.tightly.io/help/ask/setup-finish): What rhythm should Tightly plan my orders against, and when can I start? Finish is the third phase of Setup: your planning rhythm, then, on Essentials+ and Pro, the accounts you sell to, then the moment the account is ready - [Importing, and the dead end](https://docs.tightly.io/help/ask/setup-importing): > Your {source} import stopped at {set} - [The skill editor and its evals](https://docs.tightly.io/help/ask/skill-editor): What does it do step by step, what would it do today, how far does it go, is it proven, what waits on me, and what has it done? One skill's page is its sequence and its record on one page - [A skill's run](https://docs.tightly.io/help/ask/skill-run): What did it do step by step, what changed, what waits on me, and can all of it go back? A run is one execution of a skill - [Skills and the ladder](https://docs.tightly.io/help/ask/skills): What runs without me, how far does each go, is it proven, does it fire, and what is waiting on my decision? A skill is something that runs without you, written with Ask Tightly in a conversation - [Skills and a Lite plan](https://docs.tightly.io/help/ask/skills-on-lite): A skill is something a person writes once and Tightly then runs without them: it watches for a thing to happen, works out what to do about it, and either tells someone or writes the change itself - [Stamps: Live, Data as of, Not yet refreshed, Snapshot](https://docs.tightly.io/help/ask/stamps): A stamp is the one claim an answer makes about when its figures were read - [The Ask Tightly panel](https://docs.tightly.io/help/ask/the-panel): Can I ask about the page I am on without leaving it, and will the answer know where I am standing? The panel is Ask Tightly beside every working page - [The workspace](https://docs.tightly.io/help/ask/the-workspace): Can I adjust this one number, read it against something else, ask about it, and decide whether the Board should keep the change? The workspace is one kept answer opened on its own page ## The engines - [The families and attributes engine](https://docs.tightly.io/help/engines/families-and-attributes): The engine keeps each product's family, its variation and required attributes, and measures its price band and size curve - [The forecasting engine](https://docs.tightly.io/help/engines/forecasting): The forecasting engine predicts each line's daily sales - [Price sensitivity and the price response](https://docs.tightly.io/help/engines/price-response): Price sensitivity is the pricing engine's tier for one variant: how far sales move when the price moves - [Provenance words](https://docs.tightly.io/help/engines/provenance-words): Computed, declared, measured, read in, or the name of the engine that made it: where a figure came from - [What each engine says, state by state](https://docs.tightly.io/help/engines/served-sentences): One sentence per engine per state, served whole and printed character for character on the page that reads the engine, in the Inbox row and in an answer from Ask Tightly - [The verdicts engine](https://docs.tightly.io/help/engines/verdicts): The verdicts engine reads each declared term of a commitment against what traded, once a week, and says what happened ## Settings - [API keys](https://docs.tightly.io/help/settings/api-keys): Which keys can reach Tightly from outside, what can each one read and write, when was each last used, and how do I make, replace or stop one? API keys sits in the Developer group of the settings rail, beside Metrics; the `Product data API` row under `Reads from Tightly` on Integrations opens the same page - [Approvals](https://docs.tightly.io/help/settings/approvals): Who signs off a commitment before it owns money: must a second admin sign what another admin submitted, or may one admin declare and approve? Approvals is where the organisation chooses, and the record of every time it chose - [Asking for a new connection](https://docs.tightly.io/help/settings/asking-for-a-new-connection): A request is how you tell Tightly you want it to read from, or write to, a system it does not - [Billing](https://docs.tightly.io/help/settings/billing): How is this workspace paid for, where are its cards, invoices and receipts, and is a change or a cancellation scheduled? Billing carries no price list, no plan picker and no plan name: pricing is negotiated, and the plan is set with Tightly - [General](https://docs.tightly.io/help/settings/general): What is this tenant called, what does it plan in and where, what kind of company is it, and what address does a purchase order print? General is the first page under Settings and the one `/settings` lands on - [The NetSuite role Tightly connects with](https://docs.tightly.io/help/settings/netsuite-role): Purchase orders are written only when sending is enabled for your connection, NetSuite is your system of record and Tightly enables writes - [Notifications](https://docs.tightly.io/help/settings/notifications): Which events email me, and where do they go? Notifications is yours: it decides what reaches your own address - [Planning](https://docs.tightly.io/help/settings/planning): What defaults do the engines plan on for this workspace: how stock is synced, the service level, how often replenishment runs, the default lead time, the calendar every buy plan follows, the guardrails on the envelope, the tolerances the verdicts read, and the containers a fill plan counts in? - [Profile](https://docs.tightly.io/help/settings/profile): Who am I here, how do I sign in, which tenants does my account hold, what is each one connected to, and how do I switch or add another? Profile is the first page under You, and the old Organisations page folded into it as the Tenants section - [Channels](https://docs.tightly.io/help/settings/sales-channels): Which channels sell your stock, which side of the trade is each one on, which place ships for it, whose channel it is where an account owns it, and where do its figures come from? Channels is the settings page; the rail row says the same word - [Team](https://docs.tightly.io/help/settings/team): Who can sign in to this workspace, what may each person do, which doors do they hold, and who is still waiting on an invitation? Team is the roster: people, invitations and the rungs they stand on - [Locations](https://docs.tightly.io/help/settings/warehouses): Where does stock sit, what kind of place is each one, which is the default, which are active, how does each one restock, and how long does a transfer take between any two of them? The page is Locations on the brand chair and Stores & DCs on the retailer chair; the rail row and the head take the same name, so the door and the page cannot disagree - [Webhooks](https://docs.tightly.io/help/settings/webhooks): Which outside systems are told when a purchase order is created or changes, is the last post arriving, and how do I add, re-sign or stop one? The Webhooks page is built but not yet open on Tightly: it has no address a customer can reach, so the Developer group of the settings rail shows API keys and Metrics without it, Integrations draws no Webhooks row, and an old Webhooks link lands on the Integrations list - [What comes in and goes out on a connection](https://docs.tightly.io/help/settings/what-comes-in-and-goes-out-on-a-connection): A connection has two halves, and the connection's own page shows both ## Mail - [Draft and send an email](https://docs.tightly.io/help/mail/act-send-an-email): Two acts, and only the second writes anything that leaves ## Signing in - [Back from Amazon](https://docs.tightly.io/help/access/amazon-return): Did Amazon accept my authorisation; is my Seller Central account connected to Tightly now, or do I have to go back and try again? This address is the one Amazon sends you back to after you approve the connection - [Something went wrong](https://docs.tightly.io/help/access/error): Tightly just broke on me: what happened, is my work safe, and how do I get back to it? This is the crash page - [Forgot password](https://docs.tightly.io/help/access/forgot-password): I have forgotten my password; email me a link so I can set a new one and get back in - [Authorise an MCP client](https://docs.tightly.io/help/access/mcp-authorise): Do I let this AI agent into my Tightly account, as whom, into which organisation, reaching how far, for how long? An AI agent, Claude in a desktop or a connected client, arrives here when it asks to connect to Tightly - [Not found](https://docs.tightly.io/help/access/not-found): There is no page at this address: where was I going, and where do I go now? Not found is the page every address that names nothing lands on, whatever the reason: a mistyped address, an old bookmark, a page your seat does not include, or a record that once existed and does not any more - [Privacy policy](https://docs.tightly.io/help/access/privacy-policy): What personal data does Tightly collect about me, what does it do with it, who else sees it, and what can I do about it? The privacy policy is one legal document, given by its author, rendered whole - [Reset password](https://docs.tightly.io/help/access/reset-password): I followed the link in the email; can I set a new password now and get back in? This page is reached from the recovery email only - [Sign in](https://docs.tightly.io/help/access/sign-in): Let me into Tightly, with my email and password or with the Google or Microsoft account I already use, and put me back where I was going - [Sign up](https://docs.tightly.io/help/access/sign-up): I was sent here to join Tightly: which address is this account for, what do I need to give, and what happens if the link is old? Sign-up is invite-led - [Version](https://docs.tightly.io/help/access/version): Which version of Tightly is this tab running? A customer asks it when Tightly's support has pointed them here, usually while chasing down a fix that has since shipped; a Tightly person asks it to see that a release landed on a particular tab ## The platform - [A failed read, never an empty page](https://docs.tightly.io/help/platform/a-failed-read): There is no one sentence: each page says in its own words that it could not read, and most say it beside a Try again - [Absence words](https://docs.tightly.io/help/platform/absence-words): An absence word names which kind of nothing a figure is: two or three words for a fact nobody has - [The for-sale page](https://docs.tightly.io/help/platform/for-sale-pages): Under the room's name, on the page a marked row opens, one sentence naming the plan that sells it: - [Plan denial](https://docs.tightly.io/help/platform/plan-denial): Where a request reaches a room your plan does not include: - [The four-five-four calendar](https://docs.tightly.io/help/platform/the-calendar): The four-five-four calendar is the retail calendar Tightly plans on - [The brand chair and the retailer chair](https://docs.tightly.io/help/platform/the-two-chairs): Every company that plans a season with Tightly sits on one side of a table - [Tiers: Lite, Essentials, Essentials Plus, Pro](https://docs.tightly.io/help/platform/tiers): A tier is the rung of the commercial ladder your organisation is sold on: Tightly Lite, Tightly Essentials, Tightly Essentials+ or Tightly Pro ## Glossary - [Glossary](https://docs.tightly.io/help/glossary/glossary): Old words and wire words, each with the word the face prints instead ## What changed - [Aug 11, 2026](https://docs.tightly.io/help/releases/2026-08-11): Stocktakes sit beside Stock on hand, the Bench checks every supplier minimum, and a delivery is recorded on its own page - [Aug 11, 2026 · Essentials and Pro](https://docs.tightly.io/help/releases/2026-08-11-essentials): Demand signals read as a prioritised queue, and the Board holds the answers you keep - [Aug 11, 2026 · Lite and Essentials](https://docs.tightly.io/help/releases/2026-08-11-lite): The Budget is an editable twelve-month grid, and Smart Replenishment has a Projection view - [Aug 11, 2026 · Pro](https://docs.tightly.io/help/releases/2026-08-11-pro): Declaring a commitment is a full page, and the book lists every commitment in one place - [Aug 12, 2026](https://docs.tightly.io/help/releases/2026-08-12): The dark theme is readable on every page, and a status tag prints its word instead of a colour - [Aug 12, 2026 · Pro](https://docs.tightly.io/help/releases/2026-08-12-pro): Signing off and closing are full pages, and a commitment covers a list of entries with exceptions - [Aug 13, 2026](https://docs.tightly.io/help/releases/2026-08-13): The accuracy figure names the weeks it measured, and a page that has gone stale reloads instead of hanging - [Aug 13, 2026 · Pro](https://docs.tightly.io/help/releases/2026-08-13-pro): A commitment's state says what has and has not been measured, in five distinct words - [Aug 20, 2026](https://docs.tightly.io/help/releases/2026-08-20): Every control has a name a screen reader can say, and charts follow the theme in both modes - [Aug 20, 2026 · Essentials and Pro](https://docs.tightly.io/help/releases/2026-08-20-essentials): A product's family sits beside its category, and a missing family is proposed from similar products - [Aug 20, 2026 · Lite and Essentials](https://docs.tightly.io/help/releases/2026-08-20-lite): Allocation shows where a purchase order's committed units go - [Aug 20, 2026 · Pro](https://docs.tightly.io/help/releases/2026-08-20-pro): The book ranks what needs attention this week, and the on-track chart shows the declared band - [Aug 24, 2026](https://docs.tightly.io/help/releases/2026-08-24): An allocation split saves and says what happened, and every button wears the one brand colour - [Aug 24, 2026 · Pro](https://docs.tightly.io/help/releases/2026-08-24-pro): A commitment's planned buy goes to the Bench for review, and Selling periods are yours to define - [Aug 26, 2026 · Pro](https://docs.tightly.io/help/releases/2026-08-26-pro): A reorder line shows its justification, and the desk is a reconciliation against every declared target - [Aug 28, 2026](https://docs.tightly.io/help/releases/2026-08-28): A purchase order delivery says what remains, and a completed delivery reads quietly in ink - [Aug 28, 2026 · Pro](https://docs.tightly.io/help/releases/2026-08-28-pro): Every account has a page of its own, and depth on the desk comes from your own trading - [Aug 30, 2026](https://docs.tightly.io/help/releases/2026-08-30): A variant's page is a room of its own, and the warning glyph draws at icon size again - [Aug 30, 2026 · Essentials and Pro](https://docs.tightly.io/help/releases/2026-08-30-essentials): Families is a page of its own, and the Join Desk lists the incoming products waiting for a family - [Aug 30, 2026 · Lite and Essentials](https://docs.tightly.io/help/releases/2026-08-30-lite): The stock projection opens on items with a forecast - [Aug 30, 2026 · Pro](https://docs.tightly.io/help/releases/2026-08-30-pro): The room's front door follows the season's stage, and the desk reads the engine end to end - [Aug 31, 2026](https://docs.tightly.io/help/releases/2026-08-31): A teammate's permissions open from their row - [Aug 31, 2026 · Essentials and Pro](https://docs.tightly.io/help/releases/2026-08-31-essentials): Skills has a home of its own - [Aug 31, 2026 · Pro](https://docs.tightly.io/help/releases/2026-08-31-pro): Saving a forecast change inside a live commitment names the commitment and the day its buy locks - [Sep 1, 2026](https://docs.tightly.io/help/releases/2026-09-01): Purchase orders can split a line into dated tranches, and every unit on order counts once - [Sep 1, 2026 · Pro](https://docs.tightly.io/help/releases/2026-09-01-pro): The season is one thread: declare it, arm it, work the buy, run it week by week and close it with a receipt - [Sep 26, 2026](https://docs.tightly.io/help/releases/2026-09-26): Stock buffers are now sized correctly for long lead times