Hi,
I’m working on an ARM P&L Monthly report. My Column Set currently uses fixed Data Source periods (01, 02, 03 … 12).
I want to add StartPeriod and EndPeriod parameters and make the column values (not just headers) adjust dynamically based on the selected period range.
Example:
If StartPeriod = 2025-03 and EndPeriod = 2025-06, the report should only calculate/show Mar–Jun.
What is the correct way to achieve this in ARM?
Should I modify the Data Source, use Visible Formula, or handle it in the Report Definition?
Thanks in advance!

