Run a field mapping against sample data without halting the workflow — useful for testing a mapping before deploying it.
Use it in a workflow
Add a step and choose the Mapper connector.
Pick the Preview Mapping action (under data).
Fill in the fields below, then reference the result from later steps as {{previewMapping.response.data}}.
Fields
datastringrequired
Sample JSON data to test the mapping against.
mappingsarray<object>required
Define how source fields map to target fields. An 'Array Group' produces a list in the output, one entry per source item. An 'Object Group' produces a single nested object built from its child fields.
kindstringrequired
Pick by what the OUTPUT needs. 'field': one value. 'arrayGroup': a LIST in the output, one entry per item of a source list — requires sourcePath, and child paths in `mappings` are relative to each item. 'objectGroup': ONE nested object in the output, built from the child mappings in `mappings` — sourcePath is optional, and blank means the children read from the whole payload. A list is never an objectGroup and a single object is never an arrayGroup.
One offieldarrayGroupobjectGroupDefault "field"
mappingsarray<object>
Required on arrayGroup and objectGroup — the mappings applied inside the group. Omit on a plain field.
sourcePathstring
Leave blank for a static/constant field with no real source — pair with the 'defaultValue' transform to supply the literal value. On an Object Group, blank means the children read from the current scope, which is how a flat payload is gathered into an object.
targetPathstringrequired
Need more? See the Mapper guide for connection setup and behaviour shared by every action.
