SAP Message RECPSF055 - Smart Form and PDF-based form not allowed in same output request

Diagnosis
You want to generate multiple documents using the current outputactivity. The documents are based on different forms, and one form wasset up as a Smart Form while the other was set up as a PDF-based form.However, the use of both Smart Forms and PDF-based forms within the sameoutput activity is not supported.
The form &V2& of correspondence activity &V1& does not have the sameform type as the previous form in the output activity.
You are only allowed to use either Smart Forms or PDF-based forms withinone output activity.