Can't get message associated to 503 error in REST

Hi,
I face an issue by using a REST connection. I tried to contact a WM REST service from another WM application.
When the Rest service simulate http 503 error, I can’t get the message associated with the errorcode.
With errorcode 500 or 502 (for example)I’m able to get the linked message.
Do you know I can get the error message for 503?

Best Regards

Hello Adrien,

Are you referring to REST connector or REST API, can you be more specific or share the API information.

Regards,
Bharath