If you are facing an error while shipment then there’s something wrong in your logistic credentials which is added in logistic configuration. Please check below list and verify the same.

UserDoesNotExists

Please open logistic configuration and verify added details in bluedart settings and also make sure that test mode is disabled for production details and test mode should be enabled if you have added the detail for testing (sandbox details).

Bluedart team will share both sandbox and production details over email, so while adding make sure you are adding correct details in correct mode.

Outbound Service is not available

The error is form bluedart API and it means COD order is not serviceable for selected product code.