In our iOS app we use both Firebase and AdWords SDKs. We use Firebase for app installs and in-app events and we use Adwords SDK for the sole purpose of pinging to AdWords on first app launch. This ping triggers a pre-configured postback URL to our server. This postback contains the Ad Group and the user’s Advertiser Identifier(AdId), thus allowing us to match the conversion's Ad-Group to a specific user in our database. This procedure allows us to determine which Ad-Group is the most efficient.
BUT
On AdWords support page with the title Track app conversions with the AdWords SDK or a server-to-server connection, right under the title appears the following text:
On March 31, 2018, the AdWords SDK will be replaced as the main tool for tracking conversions via SDK by Google Analytics for Firebase.
Which means we won’t be able to keep using AdWords SDK.
What other way is there to obtain both Ad-Group and AdId for each conversion? (We found that the data on BigQuery isn't liable enough so we can't use that.)
