When you stop buying from a supplier, deactivate them. They disappear from the list you pick from when raising a purchase order, but all their history stays intact.
Deactivate a vendor
In the top menu, click Purchases, then Vendors.
Click the vendor.
Click the Active dropdown near the top of the page.
Choose Inactive.
You cannot delete a vendor
There is no delete. This is deliberate — deleting a supplier would orphan every purchase order and bill you ever raised with them, and you would lose the record of what you bought and what you paid.
Deactivating keeps all of that and simply takes them out of the way.
What still works after deactivating
What | After deactivating |
Existing purchase orders | still open, still receivable, still billable |
Existing bills | untouched |
Reports | still include their history |
New purchase orders | the vendor no longer appears in the picker |
Reactivate them
Same steps — set the dropdown back to Active. Nothing is lost in between.
How to know it worked
The vendor's status reads Inactive, and they no longer appear when you click + Add vendor on a new purchase order.