Receiving an email from App Store Connect with the subject "Action Needed: Missing API declaration" is the new standard frustration for iOS developers. Specifically, error ITMS-91053 blocks your submission or triggers a warning because your binary utilizes "Required Reason APIs" without declaring them in a PrivacyInfo.xcprivacy file. Since the enforcement of iOS 17 privacy standards in Spring 2024, Apple requires explicit declarations for APIs that have the potential to be misused for device fingerprinting. This applies even if you are using the APIs for benign, standard purposes like storing user preferences. This guide provides the technical root cause analysis and the specific XML configurations required to resolve ITMS-91053 and get your build approved. The Root Cause: Why ITMS-91053 Happens Apple’s static analyzer scans your compiled binary (and all embedded third-party SDKs) during the upload process. It looks for symbols associated with four spe...
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