My client wishs to backup data and not loose it when the time periods change. To do this I envisage modules with not applicable time and containing 2 lists: one the months of the year, the other the sequential years that he wishs to save. My difficulty is to transfer the data to these modules. In the source modules, in the line items I have incuded the back up month for the year to be saved, formatted on the list in the backup modules. I attach screen shots of sorce and target modules Thanks for any help