Clean your data before the new system: seven steps you cannot skip
A new system does not make data cleaner, it makes dirty data spread faster. Seven steps from naming the master copy to the freeze and cutover.

A new system does not make data cleaner, it makes dirty data spread faster. Seven steps from naming the master copy to the freeze and cutover.

What is written here are general principles. Your business has its own context - let the NinePlus team talk it through with you directly.