What is the "Device ID Macro" field on an iOS URL tracking site?

Question

I use the campaign tracking URL builder here: https://developers.google.com/analytics/devguides/collection/ios/v3/campaigns#url-builder

I select "custom" for the "Ad-Network" field. One parameter that is required is “Device ID Macro,” but I cannot find it anywhere in the documentation.

Where can I find the "Matrix device identifier" option?

Answer 1

The device identifier mask is the identifier for the advertiser, usually it is% {idfa})

What is an IDFA? Advertising Identifier (IDFA) is a unique identifier for each iOS device that mobile ad networks typically use to serve targeted ads. Users can restrict ad tracking by disabling this setting on their devices.

Or in essential words:

When you conduct a campaign with a specialized company, you will receive an idfa code to use to track information about devices registered in the campaign (for example, whether they were received, location, etc.).