Can we enabled Multifund accounting in AR if Customer is already live in AP and GL but not in AR?

Summary:

Can we enabled Multifund accounting in AR if Customer is already live in AP and GL but not in AR?

Content (please ensure you mask any confidential information):

Hi

Our Customer is already live in AP and GL but is now doing a new implementation for AR and PPM.

Hence they already have transactions created for the ledger in AP and GL but not for AR. Can we enabled Multifund Accounting in this scenario?

None of the documentation specifies whether the ledger is just expected to not have any AR transactions or if it should not have any transactions in any module.