Iam preparing a grid field for tasks grid on the tempo dashboard. I need to get

Iam preparing a grid field for tasks grid on the tempo dashboard. I need to get the data from a portal report.
If want to get the datasubset as follows,
getPortalReportDatasubset(
reportId: cons!TASKS_FOR_REQUEST_REPORTID,
pagingInfo: ri!pagingInfo,
contextIds: {},
filters: {{field: "xx", operator: "EQUAL", value: rf!reqID}}
)

Can anyone help me how to figure-out the field id value? For one of the task grid, it worked with field: "11" when i am filtering based on first field in the task report. But that 11 is not working for the first field in another report. How to figure out the field id ?

OriginalPostID-150475

OriginalPostID-150475