Error: Unable to connect to tenant with primary app [f153a0d7-c8c0-404a-b54c-bec1b7e3f914]. Please verify the credentials

When you add new SharePoint sites, an error message appears that says "Error: Unable to connect to tenant with primary app [f153a0d7-c8c0-404a-b54c-bec1b7e3f914]. Please verify the credentials"

Symptoms

When you try to add SharePoint sites after configuring SharePoint Online, the following error message appears:

Error: Unable to connect to tenant with primary app [f153a0d7-c8c0-404a-b54c-bec1b7e3f914]. Please verify the credentials.

Causes

When adding an app for SharePoint Online using the express configuration option, the DisableCustomAppAuthentication setting on the tenant is set to true.

Microsoft recommends setting DisableCustomAppAuthentication to false. For more information, see Granting access using SharePoint App-Only.

Resolution

1. Using the  Microsoft Azure Active Directory (Azure AD) web application, run the following SharePoint Online PowerShell command to set DisableCustomAppAuthentication to false on the tenant: set-spotenant -DisableCustomAppAuthentication $false
2. In the Command Center or Metallic console, from the Add sites dialog box, view the cache for the site and click Refresh cache. 

For more information, see the following documentation:

• Metallic:
  • Registering the Azure App for SharePoint Online in a Modern Authentication Environment
  • Add an App for SharePoint Online Using the Express Configuration Option.
• Commvault: 
  • Registering the Azure App for SharePoint Online in a Modern Authentication Environment
  • Add an App for SharePoint Online Using the Express Configuration Option.