RE: Add Over 90 Day Bucket on A/R Aging by Due Date
The field Heading Type alters the labels on my headers. I have two options 1) Date Interval - This shows the start and end day of each aging bucket period, 2) Number of Days - This shows the aging bucket in Not Due, 0-30 Days etc.
It's possibly a GB Localisation of the report so may not be available in the local version you are running however the report is in the standard object range (Report ID 120) and not a GB object ID. Can you confirm the Report ID for the report you are running?