Real-Time Conversion Streaming via Universal Outbound Webhooks

The Headache: Closed Ecosystems and Manual Reporting

Performance marketers need their conversion data distributed across multiple tools:

Slack or Telegram: To receive instant real-time sales alerts for team motivation.

CRM Systems: (HubSpot, ActiveCampaign) to start email automation sequences.

Accounting/ERP: (QuickBooks, Google Sheets) to track profits and ROI.

Most trackers only support forwarding data to standard ad networks (Meta, Google). If you want to connect to a custom database or Slack, you are forced to write custom scripts or pay for expensive third-party integrations.

PostbackFlow solves this with Universal Outbound Webhooks.

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How It Works

A Webhook is an HTTP POST request triggered by an event.

When PostbackFlow receives a conversion postback from your affiliate network:
1. It validates the conversion.
2. It compiles a standardized JSON payload containing all transaction details.
3. It signs the payload using a unique Secret Key to ensure authenticity.
4. It instantly POSTs this JSON payload to your custom Webhook URL.

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Technical Specifications: The Webhook Payload

Here is an example of the standard JSON payload sent by PostbackFlow:

{
  "event_id": "conv_abc123xyz",
  "click_id": "pbf_click_id_998877",
  "campaign_name": "Health Offer A/B Test",
  "event_type": "purchase",
  "payout": 45.00,
  "currency": "USD",
  "sub1": "facebook_ads",
  "sub2": "lookalike_audience",
  "received_at": "2026-06-28 11:15:30"
}

Securing Your Webhook (Signature Verification)

To prevent malicious requests from mimicking PostbackFlow, we include an X-Postback-Signature header in every webhook call. This signature is generated using HMAC-SHA256 matching the raw request body and your Webhook Secret Key:

$calculatedSignature = hash_hmac('sha256', $rawBody, $webhookSecretKey);

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Step-by-Step Configuration

1. Go to Ad Platforms (Settings) in the PostbackFlow Console.
2. Find the Custom Outbound Webhook card.
3. Click Configure.
4. Enter your destination Webhook URL (e.g. your Zapier Webhook URL, Telegram bot gateway, or server endpoint).
5. Generate or input a Secret Key for security verification.
6. Toggle Active and click Save.

Now, every conversion that arrives on your account will instantly stream to your custom webhook endpoint.

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Expected Results & ROI Impact

Instant Sales Notifications: Send real-time victory alerts to Slack or Telegram channels.

Open System Connectivity: Connect to 5,000+ apps via Zapier or Make.com webhooks.

Automated Customer Lifecycles: Instantly add leads to email newsletters or call lists.