Fix/Change Invoice Number on Unposted Servicing(s)

Open The Post Store Servicings screen in BookLink, right-click on the servicing you need to fix, and choose Edit Servicing. 

On the Edit page, go to the Invoicing tab, click on the wrong invoice, and click the Remove Invoice button.

Click the Add Invoice button, then supply a new Invoice ID, Bill Type, and confirm the date. Click Save.

Make sure to enter an invoice number that is not a conflict! Check with the IT Dept. if you don't know how to do this.

Click on your new invoice and click the Auto-Add Items button, and click Save.