Account Payment Mandate

This module adds a new 'Banking Mandate' document that records a customer's authorization for direct debits. You can create mandates from the Accounting menu under Receivables > Banking Mandates, or directly from a customer's bank account form.

Each mandate has a reference (auto-generated with a sequence), a type (recurrent or single use), a signature date, a status (draft, valid, final debit, expired, cancelled), and an optional scan. Mandates are linked to a partner and one of their bank accounts. You can validate, cancel, or move a mandate to final debit using buttons on the form.

When a payment method is configured to require a mandate, the mandate becomes mandatory on customer invoices and payment lines. The system automatically suggests the customer's first valid mandate, and you can see the number of mandates on the customer form and the related payment lines from the mandate.

Business rules ensure that a mandate cannot be validated without a signature date and a bank account, that the signature date is not in the future, and that the bank account belongs to the same partner. Payment lines check that the bank account matches the mandate. Multi-company rules restrict access to mandates of allowed companies.