When a supplier provides their own discount code structure for setting up their catalogue discounts and margins you need the below linked document to setup your Discount Codes in EQ.
For instructions on setting these discount codes refer to the article Discounts & Margin button (link to the heading Supplier Specific Discounts).
Click the link below to view the discount codes:
Trade Mouldings
https://eq.compusoftgroup.com/documents/discount-codes/trade-mouldings/trade-mouldings.pdf