How to Build a Vendor or Supplier Portal

What a Vendor Portal Handles

Vendor portals serve the other side of your business relationships. While a customer portal faces outward to the people who buy from you, a vendor portal faces upstream to the people who supply you. Common vendor portal features include:

• Purchase order viewing: Vendors see orders you have placed with them, including quantities, delivery dates, and special instructions
• Invoice submission: Vendors create and submit invoices directly through the portal instead of emailing PDFs
• Inventory updates: Suppliers update their available stock levels and pricing so you always have current information
• Document management: Vendors upload and maintain their certifications, insurance documents, and compliance paperwork
• Communication: A messaging area for order clarifications, delivery updates, and general coordination

Building the Vendor Portal

The setup follows the same process as any customer portal. Start with your domain setup, then create database pages for each section. The difference is in the page configurations, which focus on vendor-specific data fields and workflows.

Purchase Orders Page

A read-only list of purchase orders for the logged-in vendor. Each order shows the order number, date, items, quantities, delivery date, and status. You manage orders through your admin panel, and vendors see only the orders addressed to them. Set canCreateNewData to false since vendors view orders rather than create them.

Invoice Submission Page

A form where vendors create new invoices referencing their purchase orders. Fields include invoice number, PO reference, line items with quantities and amounts, payment terms, and file upload for supporting documents. When a vendor submits an invoice, it appears in your admin panel for review and approval.

Product Catalog Page

For suppliers who provide products, a page where they manage their catalog entries. Each product has a name, SKU, description, unit price, minimum order quantity, and availability status. You see the combined catalog from all suppliers in your admin view, making procurement decisions easier.

Automating Vendor Communication

Set up email notifications for portal events. Vendors get notified when you place a new purchase order, when an invoice status changes, or when you send a message through the portal. You get notified when vendors submit invoices, update their catalog, or respond to messages. This keeps both parties in sync without manual follow-up.

For time-sensitive communications like delivery delays or urgent orders, add SMS notifications so vendors see critical updates immediately on their phone.