DocumentationAnalyticsStreaming media services guide

Creative ID

Last update: May 12, 2026

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This page covers the Creative ID reporting dimension. See Creative ID for how to collect this variable.

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The Creative ID dimension reports the ad creative identifier. Use the dimension to roll up engagement across ads that share a creative.

How this dimension is populated

Reporting system
Source
Adobe Analytics (processing rule)
Create a Processing rule that maps a.media.ad.creative to an eVar.
Adobe Analytics (classification)
Classification of the Ad dimension — Adobe automatically creates this classification when Media Ads is enabled for the report suite. You are responsible for populating and maintaining classification values.
Customer Journey Analytics
mediaReporting.advertisingDetails.creativeID
Data feeds (processing rule)
evar1-evar250, post_evar1-post_evar250 (the eVar that your processing rule maps a.media.ad.creative to)
Data feeds (classification)
N/A — Data feeds do not support classifications.
Audience Manager
c_contextdata.a.media.ad.creative

Classification approach

Adobe creates the Creative ID classification structure automatically when Media Ads is enabled for the report suite. You are responsible for populating and maintaining the classification using Classification sets.

This approach provides a guaranteed 1:1 relationship between each ad ID and its creative ID. Classification updates apply retroactively across all historical data for that ID.

IMPORTANT
Do not change the Creative ID classification name. Renaming it can cause Adobe to recreate the original classification, resulting in a duplicate.

Processing rule approach

Create a Processing rule that maps a.media.ad.creative to an eVar. This approach captures the creative ID as a per-hit value without requiring classification maintenance.

The trade-off is that you lose the guaranteed 1:1 relationship between the creative ID and the parent Ad dimension. If your implementation sends inconsistent values for the same ad ID across events, multiple creative IDs can appear under the same ad. Updating a value only applies to data moving forward.

Dimension items

Each item is a unique creative ID. Use a stable identifier per creative so the same creative rolls up to a single line item across campaigns.

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