After Google Analytics is registered as an endpoint, you can share Google Analytics segments as audiences in Acoustic Exchange.

In Acoustic Exchange, the Google Analytics endpoint uses the Google Analytics Reporting API to retrieve analytics data from Google Analytics. Ensure that the API is configured to send segment data to Acoustic Exchange. For more information on the Google Analytics Reporting API, see Creating a Report in the Google Analytics user help.

Like other Acoustic Exchange applications, segmented data from Google Analytics can be shared with endpoints as audiences. To access the segmented data from Google Analytics, a refresh token must be provided during the endpoint registration process.

In Acoustic Exchange, audiences are a collection of IDs, attributes, and unique identifiers that describe a selected group of individuals as a segment of a marketing database. When you share an audience, you modify a marketing database in one endpoint with records from another endpoint.

Acoustic Exchange source identifiers and attributes for Google Analytics audiences are directly influenced by Google Analytics custom Dimensions and Metrics. As such, Google Analytics Dimensions and Metrics must correlate with one another to be consumed by Acoustic Exchange. For example, Product is a Dimension in Google Analytics and can be consumed by Acoustic Exchange as a source attribute. If the Dimension Product is designated to be sent to Acoustic Exchange as the first audience source attribute, and you want to include Metric data, then a Google Analytics Metric that correlates with the Product Dimension must be indicated. Acoustic Exchange reads the Metric as the second audience source attribute. In this example, the Metric Product Detail Views correlates with the Dimension Product. For more information on custom Dimensions and Metrics, see Custom Dimensions, Custom Metrics, and Custom dimensions & metrics in the Google Analytics user help.

Source database IDs for Google Analytics audiences are directly influenced by the Google Analytics view ID. For example, the number of view IDs associated with your Google Analytics account signifies the number of source databases available in Acoustic Exchange. For more information on Google Analytics view IDs, see Views (Profiles) and About views in the Google Analytics user help.

Acoustic Exchange supports custom segments from Google Analytics. For more information on segments in Google Analytics, see Segments and About Segments in the Google Analytics user help.

1. In the Google Analytics user interface, you must create a Custom Dimension for the Google Analytics segments that you want to send to Acoustic Exchange.
2. This Custom Dimension is consumed by Acoustic Exchange as an identifier during the audience share process. The creation of a Custom Dimension is necessary because Acoustic Exchange cannot share segmented audience data without at least one identifier. You must designate the Custom Dimension as either gaUserId or googleanalyticscookie. For more information, see Custom Dimensions.
3. In the Google Analytics user interface, test your Custom Dimension by creating a Custom Report to ensure that data can be sent from Google Analytics to Acoustic Exchange.
   In your Custom Report, designate the Custom Dimension as a Dimension. Then select other Dimensions and Metrics that you want to send to Acoustic Exchange.
4. For example, in the Dimension field, designate gaUserId and Product as Dimensions, then Product Detail Views as a Metric.
5. Select a date range for your Custom Report.
6. Generate your Custom Report. If data is displayed in the report, then you have verified that data exists for those Dimensions and Metrics, and that data can be sent to Acoustic Exchange.
   Initiate the Audience Share procedure in the Acoustic Exchange user interface. 
7. On step 3 "Map source to destination" in the Acoustic Exchange UI, designate the Custom Dimension that you created in Google Analytics as the first Source identifier and map it to a Destination identifier. The Custom Dimension must be either or googleanalyticscookie.
8. Map other attributes that you want to share to the destination endpoint.
9. Continue the Audience share to completion.

When you schedule a Google Analytics audience share, it is best practice to select a specific date range. If a date range is not selected, or if you choose to include all data, then Google Analytics defaults back to its standard date range. For more information on date ranges, see Method: reports.batchGet in the Google Analytics user help.