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Frequent Visitor

Get Authorization Bearer token from custom connector in MS Flow

Is there a way to get Authorization Bearer token from custom connector. My requirement is to create a custom connector for an App Registration in Azure Active Directory(for example App1) and i need to get on behalf of flow token(for another App Registration App2 in same tenant) in next step of MS Flow. It seems the authorization token on the custom connector is hidden. Is there any way to see it?




Super User III
Super User III

Hi @DilipP 


In order to access the token you need the following:


OAuth2 token url of the tenant
Client Id
Client Secret
Grant Type


If you using a third party connector not sure you going to get these details or not.



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Frequent Visitor

Hi @abm,


I am having all details (OAuth2 token url of the tenant, Client Id, Client Secret, Grant Type, Resource) and I have created a custom connector and I able to call Graph API successfully. I am using this custom connector in flow and everything works perfectly.


What is need now is the Authorization Bearer token of custom connector used to call graph api. This is for creating an on behalf of flow token in next step of MS Flow.




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