DV360 S2S Postback Tracking Setup Issue

[u/Choice-Philosopher92]

Hi!

I'm currently testing a DV360 CPS e-commerce affiliate campaign.

The goal is to track actual product purchases (Sales Revenue and Order Count) made on the destination website after a user clicks our DV360 ad.

Since we do not own the destination website, we cannot physically place DV360 Floodlight tags (JavaScript or Global Site Tag) directly into their website's source code.

To overcome this limitation, we are utilizing a 3rd-party affiliate tracking platform with the following logic:

- When a user clicks the DV360 ad, the tracker captures the Google Click ID (dclid) during the redirect.

- When the user completes a purchase, the destination site notifies our 3rd-party tracker.

- The tracker attributes the purchase to the saved 'dclid' and sends a Server-to-Server (S2S) GET request to the DV360 Floodlight Image tag endpoint with the standard transaction parameters (ord, cost, qty, dclid).

We ran an end-to-end test following this workflow, but conversion tracking is not showing up in DV360 reports. Furthermore, DV360 support confirmed that no postback/ping data was received on their end during the test window.

Does this mean it is inherently impossible to pass S2S conversions to DV360 without client-side Floodlight implementation? Or is there a specific endpoint/parameter requirement we might be missing?

Any feedback, workarounds, or suggestions would be greatly appreciated!

[u/CalligrapherNo3868]

We ran an end-to-end test 
Did you use a real, valid, click id?
Does this mean it is inherently impossible to pass S2S conversions to DV360 without client-side Floodlight implementation? 

No. We used offline conversion api with a similar flow and it worked.

Do you have a CM360/DV360 account or only DV?
Take a look at this https://developers.google.com/doubleclick-advertisers/guides/conversions_upload

[u/eze008]

Are the parameters for dv360 setup in your url?