UTMi
s are internal UTMs, that is, URL parameters that are intended to track traffic between pages inside your site. Through them, you can trace navigation and define contexts where certain actions should be applied.
Therefore, they do not aim to track traffic coming from external sites or services for purposes related to the marketing context. This is a function performed by the UTMs, as explained in the article What are utm_source, utm_campaign and utm_medium.
Normally, the internal UTMs are used as cause of benefit. In the Promotions & Taxes module, you can define that only closed orders with a given UTM applied to the URL will receive a certain benefit. See below the field to choose or create this internal UTM in the registration of a regular benefit.

In the Orders Management module, within the order details screen, you can rotate the Total Value card to view the data for Sales and Marketing. It contains the value of the internal UTM parameter used in the benefit.

VTEX works with three types of internal UTMs:
utmi_cp
utmi_pc
utmi_p
As previously explained, utmi_cp
is used by the Promotions & Taxes module. But you can use this and the other two according to your need. Another possible use, for example, is to track the flow of users clicking on a store banner.
In the OrderForm, the fields populated by the values of these UTMs are as follows:
utmi_cp
: utmiCampaignutmi_pc
: utmiPartutmi_p
: utmiPage
They can be found inside the marketingData
node.