So, I've been trying to implement the below link using REST's Query and QueryAll call;
This in turns gives me an output like below;
SELECT ( SELECT Id, ActivityDate, Subject FROM ActivityHistories ORDER BY ActivityDate desc NULLS LAST) FROM Account where id = '0012000001XIdCt'
Each time I run this I'm getting a NotFound
error back but if I run this within the developer console it works perfectly. Is there limitations of this on the REST side?!
I also come across this post on the dev forums;
https://developer.salesforce.com/forums/?id=906F0000000BKf0IAG
I can see he has the ActivityHistories within his describe of the object but I can't seem to get this either.
Anyone tried this at all?