Error: Your organization or community is currently using SAML as an authentication method, so you can’t disable it.

Issue: Getting Error: Your organization or community is currently using SAML as an authentication method, so you can’t disable it.

Resolution : In your my domain you might have selected the SSO configuration, which is preventing the changes to be saved. You need to remove that before you can delete the SSO setting.

1. Go to My Domain > Authentication Configuration > Click Edit button
2. Un-check the SSO config you want to delete and save it.