Keep supplier costs reusable
When a recipe is saved, its purchase costs are also available in the workspace ingredient library. That makes a new invoice useful across more than one dish.
Supplier price updates
See which saved dishes move when an invoice changes.
Price maintenance is the recurring reason to keep a recipe workspace after the first menu setup. A supplier-only update should change a reusable purchase cost, show the affected saved dishes, and let the operator review the result before applying it.
A practical workflow
Upload the updated invoice
Choose the supplier-update mode and upload a current invoice or structured price file. PrepMargin previews normalized old and new package costs before changes are applied.
Review affected dishes
The workspace highlights saved dishes that use an updated ingredient. Confirm the match and decide whether a menu price or portion needs review.
A practical check
If the package price for a sauce rises while the recipe amount stays the same, the per-serving cost and food-cost percentage can rise across every dish that uses it. The supplier update gives you a focused list to inspect.
Common questions
Will a supplier upload overwrite every ingredient automatically?
No. PrepMargin previews exact-name matches and affected dishes before you apply the update. Unmatched rows stay available for review instead of silently changing recipes.
Do I need to rebuild the menu after every invoice?
No. The point of a saved workspace is to keep dishes and reusable ingredient costs together so supplier updates can be reviewed against the menu you already manage.