@mg2017 Yes I make extensive use of field ids in Workflow email subjects and bodies. It's actually really important to have a dynamic field in the subject line in the case where one recipient might get an email from multiple instances of the workflow, for example a Sales Rep getting an email every time a Transaction meets a certain set of criteria. Use the same syntax you would for saved search formulas: {tranid} , {trandate} etc. You don't need the markup '|| ||' which I've encountered only in use for dynamic URLs. Note that SQL formulas don't work in the email text, but you can create a custom workflow field and then have a state to set that field value before sending the email; make sure "Store Value" is checked. Let me know if you'd like some screenshots of sample emails.

That's great, thanks!