Link SSO accounts with already exist accounts

[alexeyf]

Hi Auth0 Community!
I have a question about linking regular accounts with SSO accounts.
For example, I had an auth0 application with a regular database connection and now I want to provide for users SSO.
What is the right way to link old accounts with new ones that will create when users will log in through SSO?
I tried to use auth0-account-link extension but it has the part where the system suggests to user linking accounts. For me, this part is not necessary, I want to link accounts without confirmation.
Here I found that I can use Management API but I do not understand when and how I should do it, because I need that user already is linked at the moment of redirection to my SPA application.

Summary:

1. What is the right way to link existing accounts with new SSO accounts?
2. if I can use auth0-account-link extension how to do it without any extra users actions?
3. If I need to use Management API is there an example of how to do it?

Thanks for your help!

[alexeyf]

I found that there is a way to link accounts through actions. Will move this way.

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Account linking using Action during Post User Registration

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[konrad.sopala]

Perfect! Thanks for sharing with the rest of community!