GA4 with Data Tag & Data Client - All revenue goes to traffic source: Unassigned

[Denis]

@Serhiy

2. in the GA4 tag on the SERVER do I still have to insert the client_id?

If you use a custom domain, then this checkbox will be enough.

@Serhiy

Should I add another purchase event with Data Tag and Data Client in addition to the official one and send the events to the same property? If so, how do you manage the duplication of purchase events?

You used the “purchase” event name in the GA4 tag and “purchase_backup” in the Data tag. In both events, send transaction_id (the id of your purchase or order). Then you can deduplicate events in BigQuery or use purchase_backup in reports of DataStudio.

You can use a similar approach for other events. But we usually use this only for purchase and lead events (from submits).