Tally ➔ Slack API Payload Specification

Technical reference for automating data exchange between Forms and Messaging workflows.

💡 How this integration works:

1. Tally triggers an event when form_response occurs.
2. Data is packaged into a standard JSON webhook payload.
3. Payload is delivered into your Slack API intake pipeline and mapped to your Messaging targets.

Authentication & Event Specs

Parameter	Source (Tally)	Destination (Slack API)
Auth Mechanism	`Bearer Token Header`	`OAuth Bot Token`
Trigger Event	`form_response`	`Ingest Pipeline`

Sample Webhook JSON Payload

{
  "event": "form_response_to_slack",
  "timestamp": 1788105197,
  "source": {
    "platform": "Tally",
    "auth_mode": "Bearer Token Header",
    "data": {
      "submission_id": "sample_submission_id_val",
      "form_id": "sample_form_id_val",
      "responder_email": "sample_responder_email_val",
      "fields_payload": "sample_fields_payload_val"
    }
  },
  "destination": {
    "platform": "Slack API",
    "auth_mode": "OAuth Bot Token",
    "target_endpoint": "https://api.slack.com/v1/ingest",
    "mapped_fields": {
      "channel_id": "{{source.submission_id}}",
      "user_id": "{{source.form_id}}",
      "text": "{{source.responder_email}}",
      "ts": "{{source.fields_payload}}"
    }
  }
}

Quick Integration Setup

Retrieve your secret API credentials from your Tally developer dashboard using authentication method Bearer Token Header.
Configure the target endpoint URL to route payloads into the Slack API intake pipeline.
Map incoming schema properties according to the JSON specification detailed above.

Expected HTTP Response Codes

Status Code	Meaning	Troubleshooting Step
`200 OK`	Success	Payload accepted and queued for routing.
`401 Unauthorized`	Auth Failure	Verify headers for valid `Bearer Token Header` credentials.
`422 Unprocessable`	Schema Error	Check field keys alignment between source and target payload.