# CreateStandaloneAdRequestTracking
## Properties
**pixel_id** | Option<**String**> | Meta Pixel ID to attach for offsite-conversion measurement. | [optional]
**url_tags** | Option<[**Vec<models::UpdateAdTrackingTagsRequestUrlTagsInner>**](UpdateAdTrackingTagsRequestUrlTagsInner.md)> | Click-URL params appended to the ad's destination as `url_tags` (e.g. utm_source). Meta dynamic macros ({{ad.id}}, {{campaign.id}}, {{placement}}, ...) are sent through unescaped so Meta expands them; every other character is percent-encoded. | [optional]
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