Payment Block – stop business with customers who don't pay

Stop delivering to customers who don't pay.

Accounting knows which customer has been behind on payments for months. Sales often doesn't. With *Payment Block*, one checkbox on the customer card warns every colleague at once, and new documents are reliably stopped.

Features

• Block with one checkbox: a new "Payment block" section on the third party card with a checkbox and a free-text reason (e.g. "3 reminders open, debt collection since 03/2026").
• Warning nobody can miss: a large red banner appears at the top
  • on every tab of the third party (card, customer, contacts, documents, notes, events …)
  • on invoices, orders and proposals, as soon as the customer is selected during creation
• Outstanding amount at a glance: the banner shows the customer's current unpaid invoice amount, net of partial payments and credit notes. Only users allowed to read invoices see it.
• Validation is blocked: invoices, orders and proposals of blocked customers cannot be validated, including mass actions and the REST API.
  •  Drafts can still be created.
  • Credit notes are always allowed.
• Override permission for accounting and management: users with "Validate documents for customers with an active payment block anyway" can still validate in exceptional cases.
• Filter in the third party list: show and filter the "Payment block active" column to see all blocked customers at once.
• Logging: every blocked validation attempt is logged with user and customer.

Clean technology

• No core changes: only standard hooks, triggers and extra fields
• No custom tables. All data is kept when the module is disabled.
• Translated into 40 languages
• Dolibarr 19.0 or later (tested up to 23.0), PHP 7.4 or later

Set up in 2 minutes

1. Upload the ZIP via *Setup → Modules → Deploy/install external module*
2. Enable "Payment Block" (CRM section); the fields are created automatically
3. Optional: grant the override permission to accounting or management
4. Done: edit a customer, tick the box, enter a reason