Add UDF to Work Table

SOLVED

I'm trying to pass a field from PO Receipt Details to the PO_ReceiptOfGoodsInvoiceWrk table which is used to generate the Receipt of Goods Register. We have added a field in PO Details which is passed to Receipt Details which I want to pass to this Work Table so it will appear on the report to make our daily Register runs more useful.

I've actually added the field, pass the data (I think) all the way through, but when I go into Crystal Reports to add the field to the report, the UDFs are not presented as a field for me to use under Database Fields. I've tried refreshing and Log On/Off Server to trigger an update to the report, but nothing seems to help get this field to appear. I've tried it all, not sure what to do next.

Thanks in advance for any help!