When a rep mis-writes a handwritten paper receipt, void it in the system so
its number is released and the rep can move on to the next one. The spoiled
paper receipt itself is handed back to accounting for review.

## Before you start

- The collection must not already be voided, and must not already be linked
  to accounting or to a vault — unlink it first if it is.

## Steps

1. Open the collection's details.
2. Choose **change to corrupted** from the actions menu (this is the menu
   item that starts the flow; the confirming button in the dialog is worded
   **Mark as corrupted**).
3. Enter notes on the reason in the dialog that appears.
4. Confirm. You'll see a success message once it's done.

You can also mark a collection as corrupted directly on the create form,
instead of saving it as a real collection — see [Record a
collection](/back-office/record-a-collection/).

## What can go wrong

**The option is missing or greyed out.** A collection already linked to
accounting or a vault cannot be voided — unlink it first. A collection that
is already voided cannot be voided again.

**You need to void it after it's already linked.** Undo the accounting or
vault link first (see [Where collected money
goes](/back-office/where-collected-money-goes/)), then void it.

## Related

- [Use your receipt book](/field-app/use-your-receipt-book/)
- [Record a collection](/back-office/record-a-collection/)
- [Where collected money goes](/back-office/where-collected-money-goes/)