Glossary
Answer piping
Reusing an earlier answer inside later questions or messages.
Piping (also called recall) inserts a previous answer into later question text, a confirmation screen, or an email - for example "Thanks, {{name}}, where should we send your {{plan}} invoice?". It makes a form feel like a conversation rather than an interrogation.
Technically, piping must reference the answer's stable question id, never its label, so that renaming a question later does not silently break every downstream reference. This is the same id-stability rule that makes responses safe to store long-term.
Use piping to confirm understanding ("You said you have 3 properties - for which one?") and to personalise outcomes. Combined with conditional logic, it lets one form behave like several tailored ones without duplicating questions.