Decoupling Finance Account Number from Account Number shared with Customer

Summary:

Due to current ERP limitations on moving an existing account to a new party, the ERP users have only one choice that is to inactivate the account, lose the ability to reuse the account number and create another account number. Thereby bother the customer by stating that you are no longer can use the account number we shared during onboarding, and you need to start using the new account number going forward. My solution is to Decoupling Finance Account Number from Account Number shared with Customer.

Content (required):

I would like to know what the implications on advance collections and any other aspects of Finance are. I would like to know how others are creating addresses in case of multiple accounts share the same address. The solution I am suggesting allows the ERP user to create a single address that can be used by multiple sites. However, one has to create different address sets to accomplish this. I am not sure why we need to define one default address set called "Enterprise Set". If anybody can explain the purpose of address set, that will be greatly appreciated.