Customer Combiner will literally merge the customers under the "parent" as if the child customers never existed. Where there was once 2 customer ID's and names, there will be only one. You can upload the transition, but you have to list them one by one. Also there is NO reversing the process, unless you restore to a backup.I think you want to look into National Accounts to create that Parent/Child relationship. unfortunately, i've never really used it so i don't have much insight on how it works.
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