The integration of forms (and further active controls) into Web Dynpro ABAP popups is not supported.

It is not possible to display two or more InteractiveForm UI elements at the same time in a browser window.

Web Dynpro ABAP does not support interfaces that are compatible with Smart Forms

Web Dynpro ABAP does not support attachments to interactive forms.

If you used an existing form for the form integration, whose interface is not based on an XML schema, you cannot then add any further data fields.

If you integrate an existing form with an XML schema-based interface into your Web Dynpro application, take care that all names of elements in the schema are made up of capital letters.