We run a report every week to look for missing timesheets.
We need to group them by Prior Period and Current Period.
Then determine if there is any missing in those periods.
The report creates a new col each week (week beginning).
Once all missing timesheets are submitted the oldest dates drop off.
Attached is a sample of the input file and expected output file.
For this example I have assumed the "today's date" ie current period is 13/09/21 (DD/MM/YY)
Any help would be much appreciated.