Does anyone know if there a best practice around sourcing data where the target module is dimensioned by a parent list and the source is a child list?
Target Module: Roles
Dimensions: Team Roles, Staging Opportunity
Target Line Item: SF User ID
Formula: Teams.'Item: SFDC User'
Source Module: Teams
Dimensions: Staging Teams
Source Line Item: Item: SFDC User
My initial instinct was to use SUM however that would not work on a list formatted line item. Also, in this case, creating a mapping table isn't practical as there are hundreds of data rows.
You can create a relative line item between source and target .
In this scenario you can bring Parent of child list which is in target module .
Parent line item formatted by Parent list and formula would be PARENT(ITEM('Child list'))
You can Lookup to this Parent line item for the target line item .
Teams.'Item: SFDC User'[LOOKUP:PARENT(line item)]
In the source module, do you have line items that are list formatted to Roles and Staging Opportunity? If so, you can use FirstNonBlank or LastNonBlank:
Teams.SFDC User[firstnonblank:Teams.Teams Role line item, firstnonblank:Teams.Staging Opportunity line item]