Point of Sale orders can now be marked as eligible for mailing, allowing the system to send related communications when needed. This is a small internal improvement that supports better integration with Odoo's messaging features without changing the checkout experience.

Add `_mailing_enabled` flag on `pos.order` model to enable sending it.

taskId: 4564577

Point of Sale payment methods linked to bank journals now automatically use the appropriate outstanding account. This reduces manual setup work and helps keep payment accounting consistent.

- Automatically assigns the outstanding account for payment methods using bank journals.

task-id: 4600008




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