Some of my users are being asked to confirm their identify when I send them through the auth & auth flow to get their token. Why does this happen to only a few users and not everybody?
As per our Trusted Selling with identity confirmation announcement, if users attempt to login to eBay from a different machine other the ones that they use usually, eBay will ask the user to confirm the identity.
During the auth & auth flow, if the user attempts to login into the eBay sign in page from a machine that is not usually used, they will be taken through the confirm identify flow as below:
Step 1: User Signs in on the eBay Sign in Page
Step2: User is asked to confirm identity
Step3: User needs to enter the PIN number delivered during the phone call
Step 4: Optionally, user can have eBay remember this computer.
API Documentation: Getting Tokens