Which is a benefit of using server-to-server app conversion tracking over an SDK?

Q)  Which is a benefit of using server-to-server app conversion tracking over an SDK?
Ans:

If not implemented correctly, adding the SDK and conversion tracking code could result in bugs in the app
Server-to-server connections are easier to set up than code-less conversion tracking
Adding SDK and conversion tracking changes to your app doesn’t require review by the Google Play Store
Adding multiple SDKs for various advertising or analytics platforms have no impact on app code file-size