Seem that you can create a Playfab account with either username or email, but you can't link one with only either parameter.
in 2018 you had this post Adding Email and Password only to existing account - Playfab Community
Thank you
Seem that you can create a Playfab account with either username or email, but you can't link one with only either parameter.
in 2018 you had this post Adding Email and Password only to existing account - Playfab Community
Thank you
There is no update about it. Currently, you still can’t link only either Username or Email to an existing account. The solution on the thread is still the feasible workaround. You can try to add the Feature Requests for your requirement.
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