The question this page answers

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. It reads what Amazon sent, once, connects the account straight away, because Amazon's code expires within minutes, and then sends you to Settings under Integrations. It opens inside Settings, under the title Amazon Seller Central.

What you see

Amazon's return address, arrived at with nothing to read, marked 1 and 2.

1. 1The muted tag marking the connection unavailable, when Amazon sent nothing back to read. Its tooltip carries the server's own reason.
2. 2Retry starts the authorisation afresh and leaves for Amazon's consent screen.

While it connects, one line under a loader:

Connecting your Amazon account…

When the connection is made, a notice says so and you land on the Integrations page:

Amazon Seller Central is connected. The first sync can take a couple of hours.

When it is not, the page shows a muted Amazon unavailable tag with a retry icon beside it; hovering the tag reads the server's own reason: where the authorisation Tightly started has expired,

Your session expired. Reconnect to Amazon.

where Amazon sent you back without the three things a connection needs,

Authorization was cancelled or incomplete.

and otherwise

The Amazon Seller Central connection did not complete.

What to do

1. Wait; nothing to press while it connects.
2. Where it did not connect, press the retry icon beside the Amazon unavailable tag to start the authorisation afresh and leave for Amazon's consent screen.
3. Or, from the Amazon row's drawer on the Integrations page, press Continue to Amazon under the lines saying Tightly reads listings, orders and FBA stock and never reads customer personal data (an unpublished application warning there is expected).

A Continue to Amazon that could not start says, in the drawer:

The Amazon Seller Central connection did not complete; try again.

The address and what Amazon sent are cleared as the page reads them, so a refresh never sends the same code twice. Tightly connects one Amazon account per organisation; a second authorisation reconnects the same one, and a paused or failed connection is set back to connected by it.

When it is empty or failed

A guest who lands here is sent to Sign in with this address remembered, and returns to it after signing in. An organisation still being set up is sent to its setup step: with what Amazon sent, so the connection lands in the wizard, or, where Amazon sent back too little, with the cancelled message. An authorisation started while creating a new organisation is finished on the setup page that started it, not here.