Preventing duplicate ARBCIG_GSVERF IDOCs created in SAP system.

Follow below link for the Managed Gateway for Spend&Network guide on How to implement routines to prevent creation of duplicate MM IDocs

Check all the steps are done correctly in SAP system.

New routines created should be activated by program RV80HGEN.

Activate the Routine from the transaction code SE38, program name RV80HGEN > Execute.

SAP Integration Suite Managed Gateway > Managed Gateway for Business Network