Error java.lang.IllegalArgumentException while making an HTTP outbound Call

[Raj_Sajin]

Getting the below error while making an HTTP outbound connection from CPI.

The same request for the HTTP call is working fine with Postman without any issues.

Error Details

java.lang.IllegalArgumentException: only ' ' and '\t' are allowed after '\n': <?xml version="1.0" encoding="UTF-8"?>

Also, I did check 3234004 - Encrypted message sent from Cloud Integration via HTTP adapter fails with Error, but it didn't helped either.

[VijayKonam]

You have newline character in your test XML before XML declaration. Remove that/blank line from XML and you should be good.