1. The standard transaction for invoicing a customer is FB70. However, we need to create a value for our customer which is a unique
number in our system as well as it becomes a line item connecting the AR subledger with General Ledger.
Here, we get a GL error message asking for Customer id.
2. The connection between the AR subledger is via so-called reconciliation account. We get prompted for it while creating the customer
in transaction FD01.
3. After Customer "Anyname" is created it becomes available as a line item in the GL. Our journal entry is now debit account 1 (Anyname)
for $1 and classify it as 4 profit as we haven't allocated any costs or expenses against it.
4. As part of standard configuration for the month-end close we have available report Compact Document Journal or RFBELJ00 which
shows a matrix of debits and credits and how they are distributed across the GL and AR subledger as well as monthly deltas for those.
Please note the initial journal having both debit and credit in GL (in a column) whereas the second journal as a debit in AR subledger and
the offsetting credit in the GL (in a row).
5. The standard vendor transaction is FB60. When trying to post a bill from a vendor we find out quickly a situation similar to what happened
in the customer subledger, i.e. we need to create the master data for the vendor first and then we can use it the journal entry. creating a GL
account for the vendor reconciliation account is also needed to keep the subledger in line with the GL.
6. Finally, we have both subleders (customer and vendor) tied with the GL and showing monthly movements in the accounts using the same
monthend Compact Document Journal report.
The layout and balances are self-explanatory.