Adjustment memos are used to make changes to item quantities or costs. The changes tracked are those that would not otherwise be recorded on another transactional document such as a voucher or a sales receipt.
Typical uses for manually-created adjustment memos include:
When you create an adjustment memo, the affected On-hand Quantity or Average Unit Cost fields are automatically updated in inventory and a permanent record of the change is added to your adjustment history.
Some actions in QuickBooks Point of Sale Desktop, such as deleting an item with a non-zero on-hand quantity, conducting a physical inventory, manually entering or editing an items average unit cost or on-hand quantity, and building or breaking assembly items, result in program-generated adjustment memos.
Saved memos are permanently stored in your adjustment history lists. A separate list is maintained for each memo type, quantity and cost. Memos can be reversed to correct errors, but never deleted.