question about `updatePostbackConversionValue`

Hi. I read below link for updatePostbackConversionValue method. https://developer.apple.com/documentation/storekit/skadnetwork/4097267-updatepostbackconversionvalue

But I want to know, does completionHandler of updatePostbackConversionValue called even if Apple’s privacy threshold for minimum install counts doesn't meet(In other words does completionHandler called even for NULL Conversion Values)? I ask this because If it is called, I can use this as a way for tracking install counts via Ads in iOS 15.4+

question about `updatePostbackConversionValue`
 
 
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