Does anyone know that if I enable the OAuth, will current access tokens granted via Auth'n'Auth remain working?
No. I still use Auth'N'Auth in my app, but use OAuth for marketplace account deletion notifications. Haven't had any problems yet.
There will be no change in the Auth'n'Auth and it remains working/active, Basically the Auth'n'Auth will use for Trading API calls and OAuth can be used for both API call means Trading API and Rest API.
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