Home > @infiniteobjects/shopify-data-manager > AdminTypes > MarketingActivityUpdateInput > utm
Specifies the [Urchin Traffic Module (UTM) parameters](https://en.wikipedia.org/wiki/UTM_parameters) that are associated with a related marketing campaign. UTMInput is required for all Marketing tactics except Storefront App. The utm field can only be set once and never modified.
Signature:
utm?: InputMaybe<UtmInput>;