I second this request. Please do confirm HPOS compatibility and update the plugin soon. WC is planning to make HPOS standard in early August (see timeline at bottom of link), and we would like to get ready ahead of time.
https://developer.woocommerce.com/2022/09/14/high-performance-order-storage-progress-report/
Just coming here for this same issue. I’ve only got 3 plugins that aren’t compatible and trying to get everything ready for this change. Thank you greatly for working on this!
Has the developer stopped supporting this plugin?
It seems this is already implemented in version 1.17 that you can find on GitHub: https://github.com/duracelltomi/gtm4wp
Let’s hope that this version is soon pushed to the WordPress repository!
