Hi @track63
Thanks for reaching out.
Hopefully, by GTM you are referring to Google Tag Manager.
I found this informative article that you may find helpful:
https://marketlytics.com/blog/enhanced-ecommerce-tracking-woocommerce-gtm/
Additionally, we have the Google Tag Manager for WooCommerce PRO extension in our marketplace that seems to be suited to your purpose.
You can go through its documentation here:
https://woocommerce.com/document/gtm-ecommerce-woo-pro/
For any pre-sales questions related to this plugin, please create a ticket here. You’d need to log into your WooCommerce account before you can access that page, or create an account if you do not have one. Just so you know, in the WooCommerce.com marketplace we offer a 30-day refund policy so you can test the extension and make sure it works for you.
I hope this helps!