Unable to grant access to workflow user profile error "The app <GUID> does not exists"

ISSUE

ERROR CODE

RESOLUTION

1. Navigate to the site URL that is going to be trusted. e.g. https://companyname.sharepoint.com/sites/HR
2. Then navigate to the Workflow App ID from the workflow by following the instruction below:
   • Go to Site Setting > Site app permissions.
   • Find the app display name Workflow (Note : NOT NINTEX WORKLFOW).
   • Get the value of App Identifier of the app display name Workflow.
   • The app ID is between ms.sp.ext| and the @ symbol, for example the App Identifier is i:0i.t|ms.sp.ext|23803489e-0e9e-4fc3-a3b3-e2bd7599c5ad@a6f890769-0c2d-46f7-9480-072519e051ed. The App ID is 23803489e-0e9e-4fc3-a3b3-e2bd7599c5ad.
3. Once we have the URL (step 1) and the App ID (step 2) , we can make a link with this format below:
   • {SiteAddress}/_layouts/15/OAuthAuthorize.aspx?client_id={AppID}&scope=AllProfiles.Read&response_type=code 
   • i.e : https://companyname.sharepoint.com/s...onse_type=code 
4. Now go to the that link and the user will see the standard Trust page to allowing the user to trust workflow engine to access User Profile Service.
    

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