Hi All, has anyone encountered the following error when trying to group invoices? "Invalid billaddresslist reference key XXX for customer XXX" I have found a few forums/suiteanswers articles where users report a similar problem, but can't seem to find a resolution.

It’s because the billing address on some of the invoices is set to “custom”. They all need to be set to the same billing address from the address list on the customer. You can’t use “custom”

That explains it. Thanks @MGBC!