You are absolutely correct! 1C8F.1 covers all the situations that CA92.1 does, and additionally allows access for app extensions and App Clips within the same App Group. In your scenario with the SDK this is the most efficient and accurate approach. 1C8F.1 encompasses all the functionalities covered by CA92.1 and expands it for extensions and App Clips. There's no need to declare both codes. Declaring only 1C8F.1 simplifies your manifest and clearly communicates the data access needs of your SDK.

Same problem for me as from 18.4. Not all calendar apps have this, so there must be a workaround. Error committing event store: [Error Domain=EKCADErrorDomain Code=1013 "Access denied" UserInfo={NSLocalizedDescription=Access denied}] Failed to commit: Error Domain=EKCADErrorDomain Code=1013 "Access denied" UserInfo={NSLocalizedDescription=Access denied} Rolling back changes after commit error: Error Domain=EKCADErrorDomain Code=1013 "Access denied" UserInfo={NSLocalizedDescription=Access denied} Failed to save event: Error Domain=EKCADErrorDomain Code=1013 "Access denied" UserInfo={NSLocalizedDescription=Access denied} code-block