Allow defining allowed journals on fiscal positions. Related invoices can only use one of the allowed journals on the fiscal position.
Use an allowed journal when creating an invoice from a purchase order.
Glue module between Sale + purchase + account fiscal position allowed journal purchase
Configure payable/receivable accounts on fiscal positions
Account Fiscal Position Rule
Make the Notes field on fiscal position translatable
Check VAT on invoice validation
Fiscal year and account period creation
Manage fiscal years and its periods
Account fiscal year account fiscal period account fiscal year period accounting fiscal year accounting fiscal period accounting fiscal year and period manage fiscal year for accounting manage fiscal year approval period approval fiscal year double approval