Passing case-sensitive data to BAPI call

Hello all!

We have encountered a BAPI that requires parameters to be passed in a case sensitive way - otherwise it fails.

So, if we are passing a string "AAAaaa", it should be passed in exactly this way to the BAPI.

ABAP manual says that all data passed to the call is put in upper case (so above example looks like "AAAAAA"). There is a workaround in ABAP itself, and also an option on SAP GUI "Test Function" screen (reads "Upper/lower case").

<b>Question:</b> How do we reproduce this feature when calling a proxy generated by SAP .NET Connector?

Thank you in advance.

Anton Maslo