The end user has not completed Auth & Auth sign in flow.

[ck_sac]

Hi everybody,

I've been trying my best to figure things out myself, but I can't find a solution to this issue.

When I have a seller authorize my application through Auth&Auth or OAuth, he gets redirected to the success page along side the session ID.

When I then go through the Trading API and use the FetchToken call, I get the error:

'Code: 21916017, The end user has not completed Auth & Auth sign in flow. The end user has not completed Auth & Auth sign in flow.'

But as I said, the user clicked the agreement link, gets redirected with the session ID.

I can't figure out why the sign in flow would not have been completed, if he gets redirected to the success page it should have worked, right?

I also checked in the seller account and my app is listed under authorized third party apps.

Is anybody able to give me some hints or provide me with some guidance?

I couldn't find any useful answers in the somewhat confusing documentation or in the forums.

Thanks in advance

[developer_support@ebay]

Hi @ck_sac,

The error message you are receiving normally occurs if the authorisation process for obtaining your token was interrupted or not completed in some manner. To fix the above error, please go through the Knowledge Base article here. 

Also see "Get Auth`n`Auth tokens" here.