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Heytag PII Flow (Web)

Heytag PII Flow is a GTM variable template that converts user inputs into valid identifiers for top-notch tracking. It ensures that data is properly formatted and hashed directly in the browser.

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Heytag PII Flow is a GTM Variable Template designed to bridge the gap between raw user input and high-precision tracking. It ensures your data is perfectly formatted and securely hashed before leaving the browser.

Key Benefits

Enhanced Match Rates

Data quality is the bottleneck of modern tracking. Inconsistent inputs like spaces, brackets, or missing country codes lead to poor attribution. This template enforces strict formatting for Meta CAPI and Google Enhanced Conversions, ensuring your marketing signals actually reach their destination and improve your ROAS.

Privacy-First Security

Security is a core pillar of the Heytag ecosystem. By using industry-standard SHA-256 hashing, this template ensures that personally identifiable information (PII) is never transmitted in plain text. This keeps your setup compliant with global privacy standards while maintaining full tracking capabilities.

Hybrid Tagging Readiness

Built for the modern tracking stack, this template offers a seamless transition between client-side and server-side tagging. You can choose to hash data instantly in the browser or pass cleaned plain-text strings directly to your server-side tagging environment. This provides maximum flexibility for advanced server-side processing, helping you offload heavy logic from the user's browser to a secure, controlled infrastructure.

How it works

  • Input: Messy user data from a form or dataLayer.
  • Clean: Removal of all noise (spaces, dashes, brackets).
  • Fix: Application of E.164 formatting for phone numbers.
  • Secure: Optional one-way SHA-256 hashing.
  • Output: A "ready-to-fire" signal for your marketing tags.

Configuration

Fields

  • Input String: The variable containing the raw user data (e.g., {{DLV - Email}}).
  • Trim Whitespace: Removes leading/trailing spaces.
  • Convert to Lowercase: Recommended for Email hashing.
  • Is Phone Number: Enables specialized E.164 formatting logic.
  • Default Country Code: The prefix used if a phone number starts with a single 0 (default: 49).
  • Enable Hashing: When checked, outputs a SHA-256 hex string. When unchecked, outputs the normalized plain text.

Installation

  1. Download the template.tpl file.
  2. In GTM, go to Templates > Variable Templates > New.
  3. Click the three dots (top right) > Import.
  4. Select the file and Save.
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