I have been facing multiple rejections from the apple team due to IDFA. I had previously used google firebase alongside SDKBOX IAP. But since I got this issue I have removed firebase.
I’m currently using SDKBOX version 184.108.40.206
In order to check for Advertising Identifier, I had followed the following steps:
$ grep -lr “advertisingIdentifier” * | grep -v .svn | grep -v .md
And it returned the following