I have two Systems A (client 100, 200, 300) and System B (client 100, 200, 300) which need to be merged together to have a single System B (with only Client 100).
What should be the strategy to be used for Merge of the Clients in the two systems to a single client in the target system?
Also, what should be the Implementation Phases? (No of Test Cycles recommended before the fina Go live)
Thanks & Regards,