# Sales Order Service attachment rules for PDF and spreadsheet purchase orders

> Each company can now decide which incoming messages count as orders based on their attachments, such as requiring a PDF purchase order.

- URL: https://logistify.ai/changelog/2026-04-29-order-attachment-rules/
- Service: [Sales Order Service](https://logistify.ai/agents/sales-order/)
- Date: 2026-04-29

- Require at least one attachment before an incoming message is processed as an order.
- When a message has attachments, process it as an order only if at least one is a file type you choose, for example PDF or XLSX.
- The same rules apply to orders from email, WhatsApp, SMS, phone calls, voicemail, Slack, and Microsoft Teams.