If a Supplier Product Code has been provided in a product record's Purchase tab, it will populate in the Supplier Product Code field in the Order Lines of a Purchase Order, and will be available to include on the Purchase Order's Doc Designer template.
To provide a Supplier Product Code in a product's record:
Open the product's record.
Go to the Purchase tab, then the Suppliers tab.
Use the Supplier Code field to find and select the Supplier, whose product code you'll be adding.
The Supplier Product Code field will become available. Enter the Supplier Product Code.
Click Add.
Click Save.
If the Supplier's already been added to the product's Purchase, Suppliers tab, click on the Supplier Product Code field in the Supplier list, and you can add or update it.
To add Supplier Product Codes to your Purchase Order templates:
Go to Settings > Doc Designer > Purchase Orders.
Use the Template dropdown to select the appropriate template; it cannot be Formal or Classic.
Select the Purchase Order Lines Grid component on the template layout.
In the Component tab, select Supplier Code in the headers list.
Tick the Visible checkbox.
Save and Publish the template.