Profile: Support

support@foxnetsoft.com

and upgrade please plugin, I want to be sure that you use the last release.

Can you give me access to your nopcommerce instance?

Can you send me login and password for your store to my email support@foxnetsoft.com?

Can you send me the store URL in private mode?
I want to see if I see the tracking codes on HTML page
My email is support@foxnetsoft.com

Do you see any events in GTM?

Did you configure Google Tag Manager for Enhanced ECommerce?

Key;ProductAtribute;ProductAttributeValue;Language;Name
COMP_CUST;Processor;2.2 GHz Intel Pentium Dual-Core E2200;1;Russian

Product Attribute Value has only one localized value. It name "Name". You need to add this "Name"  in mapping.

"Localized values - Product Attribute Value"

You need to set
Key,
ProductAttribute   - the plugin will sue this parameter for looking for product attribute
ProductAttributeValue   - the plugin will sue this parameter for looking for product attribute value
LocalizedValue  
LanguageID

One moment.
Do you want to add localized values for
Product Attribute Value
or
Product Attribute?

Attribute
Do you use the primary attribute name?