Who.Type Task Where Clause not Working in mdt rollup

[Dustin-Northcutt]

I'm attempting to rollup Task data to Contacts and want to add Who.Type = 'Contact' to the Child Object Where Clause. When I attempt this I get the following error:
SObject row was retrieved via SOQL without querying the requested field: Task.Who

Here's my mdt record

Guessing I'm doing something wrong?

[jamessimone]

Have you tried omitting that (e.g. using ActivityDate <= TODAY AND ActivityDate >= LAST_N_DAYS:45 AND IsClosed = true AND TaskSubtype = 'Call' ? Since you're not starting this rollup from the parent, I don't think you actually need to filter on the type since only matching Contacts will end up getting rolled up values assigned

[Dustin-Northcutt]

@jamessimone I have tried that and it is working as expected! Apologies I should have clarified that. I was thinking that perhaps the Who.Type filter would improve the query's performance but it may not matter.

[jamessimone]

No worries - I will have a look at this, though, to see what the underlying issue is. I have a few tests for validating Who.Type where clauses work but this must be some other part of the codebase or a gap I hadn't anticipated

[Dustin-Northcutt]

Thanks so much @jamessimone!