Account determinations are separated via processing keys that the system
uses for different transactions.
OB40 - Define Tax Accounts
Double click on the Process key (the
first screen is the rules). Once you set the rules, it cannot be
changed unless all the account determinations are first erased. For
certain rules, the indicator that are greyed out as it cannot be maintained.
Click the Accounts button for the Accounts
Click the Posting keys for assign the
Posting keys (Debit/Credit).
At the Posting keys screen, the note "Posting
keys are independent of chart of accounts" means that if it includes
more than one chart of accounts, the debit/credit posting keys set here
will be valid for all the charts of accounts.