I want to use a Visualforce template, but when I try to use the "same" merge field in the vf template I can't save it as I get an error message. (The actual merge field I'm trying is {!relatedTo.Last_Case_Comment} and the template is configured with relatedToType="Case").
The error message is "Error: Invalid field Last_Case_Comment for SObject Case."
How can I get the last case comment in to a Visualforce Email?
4 answers
Hacking on this now, and looks like workflow field update is limilted to 1300 characters. Now that is probably enough to get a pretty good idea of what is going on, and is certianly easier than coding up a custom component and a visualforce email template, so you can make the call on whether to go declarative or not.
See: http://help.salesforce.com/HTViewSolution?id=000206092&language=en_US for an article declaring the limit, which specifically mentions case comment -> case field update.
That said, I dont see anything under 'considerations on field updates' so its possible that one of these two articles is out of date, have not tested: https://help.salesforce.com/apex/HTViewHelpDoc?id=workflow_field_update_considerations.htm&language=en
