Why is it my Trade Debtor A/c is not found in the GL and Cash Book?
If the GL account is a "control account" like Trade Debtor, Trade Creditor or Stock A/c, any direct entries into these will impact the subsidiary ledger. To avoid control account not tallying with the sub-ledger, the system allows these control account to be flagged.
In example below, GL A/c 11800 is flagged as a Control Account.
Because of this flag, whenever user try to pass a journal or enter transactions directly into it, the account code will not show in the list - thus avoiding the problem of unmatched sub-ledger.