We are pleased to announce the release of Amplitude Tag for GTM-SS v0.4.0!
This release adds the new Additional Properties section in the Tag configuration that enables setting specified event or user properties in Amplitude payload to custom values (e.g. through a GTM Server-side variable).
CHANGELOG
New features
Allow setting properties to custom value (#26)
UPGRADING
The Amplitude HTTP API V2 GTM Server-side Tag is published in the GTM Gallery, and the option to update should become automatically available in your GTM SS instance.