Account Invoice Tier Validation Approver

This module adds a person responsible for approving vendor bills. On a vendor (partner) record you can pick an "Approver of Vendor Bills"; when you create a vendor bill for that vendor, that person is filled in automatically as the "Responsible for Approval".

In the Accounting settings you get a new option, "Require approver in vendor bills". When switched on, Odoo will not let a vendor bill be posted unless a Responsible for Approval has been set; if it is missing, an error message asks you to indicate one. The setting is company-specific.

Turning the option on also creates and activates a tier definition for vendor bills (type in_invoice) that uses the approver field, so the standard tier validation approval process applies. Turning it off deactivates that definition.

Where it appears: - On the vendor bill form, the Responsible for Approval field is shown next to the reference and becomes read-only once approval reviews exist. - On the vendor (partner) form, the Approver of Vendor Bills field is shown near the payment terms. - In the vendor bill list search filters, you can filter by Responsible for Approval. - In Accounting settings, the new checkbox controls the requirement.

The module touches account.invoice, res.partner, res.company and res.config.settings.