I have been tasked with determining why certain tests are failing in Postman's collection runner. I found this question helpful but it does not address the scope of my issue.
This post suggests I could be sending the request with invalid JSON, but I did not write these tests, so I am unsure of how to check that.
My collection runs 423 GET/POST tests:
280 pass
143 fail
100% of all GET tests pass, as well as some POST tests.
However, all tests that fail are POST tests. Of these:
Almost all of them get a 500 Internal Server Error
They do not log a Response Header or Response Body
So far, I have ensured the app server is listening on the correct ports, and I've restarted the server a few times. Beyond this I'm unsure of how to proceed; most of my experience is in Java desktop applications but I'm now tackling this web application.
What steps should I try next?