How to handle a client copy

Hello gurus,

we have a SAP GTS-client connected to our ERP quality assurance (QA) system for testing purposes.

Now, we are planning to do a client copy from our ERP production system to our ERP QA-system.

After that, there will be a inconsistency between ERP and GTS (QA clients):

E.g. I created several new vendors in our ERP QA-system that were then transferred to SAP GTS (QA) with the vendor number given by the system (lets say vendor 215245 u201CTestvendor Inc.u201D). Now after the client copy, those vendors will have been overwritten in SAP ERP (QA) and there will be a u2018realu2019 vendor with that vendor number (e.g. 215245 u201CRealvendor Corp.u201D)).

Same goes for documents created for testing before the client copy.

My question is: How can I handle those inconsistencies? May I just transfer all the changed business partners and documents again or will that give me additional trouble?

Thanks in advance

Alicia