[rahimnathwani]

You could implement it as either a subaccount per customer (in which case the balance is just the sum of all txns in that account) or have 'apartment' as another dimension (field) you store (optionally) for each transaction.

Either way you can get a sum of all txns that have hit that apartment's AR account.

[sudhirj]

Thanks, let me think about this. This feels counterintuitive to me, and increases complexity a bit.