Reuse an invoice number on a bill

Understand invoice number behavior

If you generate a bill and select Do Nothing at the approval stage, Sage Timeslips keeps no record of that bill.
In that case, Timeslips doesn’t reserve or track the invoice number.

Reuse the invoice number when the bill is in Proof or Revision

Use this option when the bill still exists in Proof or Revision.

1. Select Setup, General.
2. Under Transactions, choose Bills.
3. Mark Reuse invoice numbers of cleared Proof Stage bills or last undone approved bill.
4. Select OK to save the change.

Timeslips reuses the original invoice number when you regenerate the bill.

Reuse the invoice number after the bill is cleared

Use this method when the bill no longer appears in any billing stage.

1. Select Setup, General.
2. Under Transactions, choose Bills.
3. Record the current Next invoice number.
4. Change the Next invoice number to the invoice number you want to reuse.
5. Select OK.
6. Generate and approve the bill.
7. Return to Setup, General, Bills.
8. Reset Next invoice number to the original value you recorded.
9. Select OK.

This process preserves invoice numbering continuity without affecting future invoices.