Sage 100 Erp Advanced version 4.3 PU 18. Created several udfs with the same name ""upsaccount"" and mapped. Client has reported the data is missing for the customer maintenance udf. This is the 3rd time in the last 3 months the data in this udf mysteriously disappears. I have run the custom office update and udf rebuild. Same issue 4 weeks later. Thoughts?