Unable to update an existing custom role using Azure portal

Question

I have trouble updating/deleting an existing custom role. What should I do?

Answer 1

If you are unable to update an existing custom role, check that you are currently signed in with a user that is assigned a role that has the Microsoft.Authorization/roleDefinition/write permission such as Owner or User Access Administrator.

• If you are unable to delete a custom role and get the error message "There are existing role assignments referencing role (code: RoleDefinitionHasAssignments)", then there are role assignments still using the custom role. Remove those role assignments and try to delete the custom role again.