submitted_form

A form on the site was submitted.

Open mode: the form's fields may travel as properties, and declared ones are checked. Values that look like an email address or a phone number in undeclared properties are dropped, because an identifier in a free field would escape normalisation and erasure; send them as identifiers instead.

Sent with	browser, server keys (see write keys)
Mode	open: any keys; the declared ones are checked when present
Version	1 (_schema_version on the stored row)
State	active
Required fields	none
Revenue	none: the revenue block is refused
Identity evidence	none
Before consent	no

Fields

The activity's own fields, sent as features. Identifier and attribute fields are moved out of features by the processor; see identifiers and attributes.

Field	Type	Required	What happens to it	Meaning
form_id	string	no, may be null	stays in features	The form's id on the site.
form_name	string	no, may be null	stays in features	The form's name, as the site calls it.

Example

One activity in a batch to POST /v1/activities, with debug so the answer says what the processor made of it. The envelope page explains every top-level field.

{
  "batch": [
    {
      "activity_id": "0192f1a4-d1f3-7c18-8000-d1f3c1880000",
      "activity": "submitted_form",
      "ts": "2026-10-17T20:00:00+02:00",
      "identifiers": [
        {
          "type": "email",
          "value": "ana@example.com"
        }
      ],
      "anonymous_customer_id": "evx_web_8f21c0",
      "features": {
        "form_id": "contact",
        "form_name": "Contact us"
      }
    }
  ],
  "debug": true
}

Try it

Sends this request from your browser. The key and the endpoint are kept in this browser only.

ServiceWrite key

POST /v1/activities{ "batch": [ { "activity_id": "0192f1a4-d1f3-7c18-8000-d1f3c1880000", "activity": "submitted_form", "ts": "2026-10-17T20:00:00+02:00", "identifiers": [ { "type": "email", "value": "ana@example.com" } ], "anonymous_customer_id": "evx_web_8f21c0", "features": { "form_id": "contact", "form_name": "Contact us" } } ], "debug": true }

Versions

Version	Mode	Key classes	Change
1 (current)	open	browser, server	first version

A published version never changes; a change is a new version, and every stored row says which version it was checked against.