Custom Client ID & User ID Implementation in Google Tag Manager
Haridev Rathod
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Posted Jan 15, 2026
Implemented a custom client ID in Google Tag Manager for better tracking.
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Are you looking to enhance your user-level data analysis and improve cross-device tracking in Google Analytics?
Implementing a custom client ID using Google Tag Manager is the key to achieving these goals. This powerful technique allows you to identify and track unique users across multiple sessions and devices, providing a more accurate and holistic view of their behavior and interactions with your website.
Benefits of Custom Client ID Implementation:
Improved user-level data analysis
Enhanced cross-device tracking
More accurate attribution of conversions
Greater insights into user behavior and preferences