12,855 total views, 4 views today
12,855 total views, 4 views today Invalid issuer or signature – sometimes, we get the error “[SecurityTokenException: Invalid issuer or signature.]” in SharePoint online provider hosted app. In this troubleshooting technique, we will see how to fix the “SecurityTokenException: Invalid issuer or signature.” error in the SharePoint Online office 365. Scenario: Invalid issuer or signature Let’s say