I'm just wondering if anyone face this problem before:
1. I've created some test data in OPSI (validations of project system) in a test client (eg: 201)
2. I perform client deletion on 201 and client copy from PRD to 201
3. If I check the include statement, the test data still exist as ABAP code (and will generate an abap runtime error). However, if I go to OPSI, the test data no longer not exist.
4. If I re-create the test data in OPSI, then this problem is solved.