Question: Why I am seeing an error message when logging into a Pressero storefront via Google or Facebook?
Answer: You should be able to login using your Google/Facebook(via SSO) account on your storefront by following all the steps mentioned in the below chapter.
However there could be several instances where you are still having difficulty or receiving error messages in logging in via facebook or google
If eveyrthing is setup correctly and still you are experiencing the issue in logging in using the social networking apps like Facebook/Google,then you would need to make sure that the Assertion URL that is copied from below path and pasted in the developers console for respective apps is valid or not.
Path to copy the assertion url: Admin>Site>Site Name>Single Sign on>Click on Google/Facebook for the respective apps>Authentication Endpoint *>Copy this URL & add the Assertion URL in the console developers & save it.
Please note that most of the cases gets resolved by adding the correct Assertion URL in the developers console however if you come across further issues even after following all the steps mentioned above then please submit a Support ticket