I am using Facebook ads, Google ads, and an MMP for other networks. I just need to track installs as conversions. I do not serve ads in the app.
My MMP is saying that you cannot have multiple SDKs sending info to SKAdNetwork because it will post back inaccurate information. I have not read this anywhere else.
It says you should only have one SDK posting conversions to SKAdNetwork.
Screenshot of MMP's Blog post saying this
My question is do I need to remove or disable Facebook and Google's registration to SKAdNetwork within my app so they don't post conversions to SKAdNetwork?
OR
Is it ok that all 3 SDKs post to SKAdNetwork?
You technically only need to send one conversion value update and there will be some side effects if you send more than one (though if you handle all your app specific use cases then this might not matter).
Apple will send SKAN CVs to each of the networks you are using for optimization purposes so you shouldn't need to worry about that. I'd personally recommend that you streamline your own app flow to handle SKAN postbacks directly to Apple once.
SKAN 4.0 might make it more difficult if you send multiple CVs from different parties. The new features around multiple postbacks can now get sent to the ad networks based on cohort date and this could affect the optimizations that each of the ad networks use.