Entry Form
Use this field to specify a custom form created to collect recipients' responses from a Prompt message.
The contents of this field must use this syntax:
scalarExpression
where scalarExpression is or resolves to the name of a form accessible by all the Prompt recipients.
When you click Event Actions form, the system "wraps" this content within an ENTRYFORM( ) parameter, which yields this final syntax:
to return to theENTRYFORM( scalarExpression )