How to change customers on an invoice

If the invoice has a job, change the job customer, then go to the invoice and confirm it has changed the invoice over as well.

If the invoice doesn't have a linked job then it gets a bit tricky.

Open up the invoice needing the customer change.

Look in the URL, at the end will be like .....&invoice_id=123

add this bit to the end of the URL: &change_customer

so it looks something like this ....&invoice_id=123&change_customer

then press enter.

This will enable the "Customer" drop down box on the left.

Pick the new customer and save.