String Concatenation Error - I have an NaN error in the field after my workflow is triggered. The workflow concatenates two strings together: "Email String=Concat({entity.custentity_cust_email1},',',{entity.custentity_cust_email2})" Where all fields in the formula are a string type(free for text)/ I know the workflow is running fine because when I set it to just one email and don't have to concatenate it works. Any ideas?

Is this a Set Field Value workflow action and is you concatenation formula in the Formula field?