Sum multiple lookup values using rollup

[Robert_Petitto]

I have a multiple relation column that’s feeding a lookup column of number values (“Player XP”). I want to total them for each row using the rollup (“Total XP”), but the lookup column is unavailable from the list of available columns. Is this a bug or limitation?

[Mark]

This is a limitation. We’ll make that possible eventually.

[Jeff_Hager]

When setting up your rollup column, all relations are at the bottom of the “Summarize the Values of” dropdown. You should be using that to select the relation and XP column instead of using the Lookup column. Unless I’m misunderstanding something.

[Robert_Petitto]

Genius.