Account linking stopped working with the new Facebook limited login

[Daniel3711997]

Description

Recently https://github.com/facebook/facebook-ios-sdk created a new release which conforms with Apple Privacy Manifest but now the token returned from the limited login no longer works to link a user to an account.

• android works correctly

(on IOS - FB LIMITED LOGIN) For example if i login with my gmail and then i login with my facebook which uses the same email and want to link with credential i receive this error: Duplicate credential received. Please try again with a new credential

Reproducing the issue

No response

Firebase SDK Version

10.26

Xcode Version

15.4

Installation Method

CocoaPods

Firebase Product(s)

Authentication

Targeted Platforms

iOS

Relevant Log Output

No response

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[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[rizafran]

Thanks for reporting, @Daniel3711997. I tried linking a Google account to a Facebook account with the same email, but I wasn't able to get the duplicate credential error. I just want to clarify if you're trying to link the Facebook account to an email/password or to a Google account through Google Sign-In?

[Daniel3711997]

i got the duplicate error after i logged in with google signin and after that tried to link the facebook account

both accounts uses the same email on facebook and google

[rizafran]

Thanks for clarifying, @Daniel3711997. I tried to link the Google Sign-In credential to Facebook account, but the issue is not reproducible. Is it possible for you to share an MCVE or detailed steps to reproduce the issue?

[google-oss-bot]

Hey @Daniel3711997. We need more information to resolve this issue but there hasn't been an update in 5 weekdays. I'm marking the issue as stale and if there are no new updates in the next 5 days I will close it automatically.

If you have more information that will help us get to the bottom of this, just add a comment!

[Daniel3711997]

Thanks for clarifying, @Daniel3711997. I tried to link the Google Sign-In credential to Facebook account, but the issue is not reproducible. Is it possible for you to share an MCVE or detailed steps to reproduce the issue?

the issue still persists, link the facebook account to a google account (but with limited login from Facebook)

[google-oss-bot]

Hey @Daniel3711997. We need more information to resolve this issue but there hasn't been an update in 5 weekdays. I'm marking the issue as stale and if there are no new updates in the next 5 days I will close it automatically.

If you have more information that will help us get to the bottom of this, just add a comment!