Amazon Selling Partner connector not working (multiple seller accounts enabled)

Amazon 3P seller here, we tried setting up our Amazon Selling Partner connector with more than one store and now the entire connector broke. Any call to it returns “auth_required: true” and we get stuck in an infinite loop of Seller Central authorization flow.

We’re using the admin account with agent permissions enabled for the account, and the admin account permitted to use the agent connections.

Is this the right venue to ask this technical question or should I post it in the seller forums instead?

Hi @buyawesome and welcome to the community!

To answer your other question first, I would say this is the right place. As per my understanding, it’s a Quick connector issue, not a Seller Central one. Before anything drastic, one safe thing to try: fully remove the Selling Partner connector, then set it up fresh and authorize just a single store. Reconnecting on top of the current broken state tends to drop you right back into the same loop, so a clean setup with one store is the better reset.

A few questions to help narrow it down, did it work fine with the first store before you added the second? When you added the second store, did you authorize it on the same connector or create a separate one? And is the auth_required loop happening on both stores now, or just the one you added?

Hope this clears things up and feel free to reply with any new updates!

Yeah I think it’s a connector issue too. So…

  1. It worked fine on the first store, but once I added the second it broke
  2. I believe I authorized eveyrthing on the same connector (whatever the default behavior is)
  3. I deleted the connector in both my app and the web version of Quick (signoff + delete), then tried to set it up fresh multiple times w/ incognito browser but now it’s just broken and can’t even get 1 store to work.

One thing I did notice is that at some point my AWS account ID was being referenced in addition to my Quick account ID, but my understanding is that only the Quick account ID is relevant.

Any thoughts (or should I create a support ticket?)
edit: By clicking through the steps, I seem to be stuck on accounts_get merchants repeatedly, and the sign in doesn’t register or something.