External URL groups are objects that tell ETRNL the URLs that should be embedded into the tags.
These typically represent products and point your tags to the page on your own website where the product information can be displayed.
The URL groups allow you to program many tags that point to your product’s details page and collect useful analytics on these products.
External URL Groups can only be created through our API because this process is intended to be automated.
For example; every time you create a product within your website’s CMS, you could automate the creation of the corresponding URL group within ETRNL using the API.
For tag tamper URLs, you cannot include the cmac value as the tt message includes both the cmac and the encrypted tamper status.So the custom URL would look something like:https://exmaple.com/{tagId}/?enc={enc}&tt={tt}&eCode={eCode}