# ABGroupAddMember(_:_:_:) Adds a person to a group. iOS, iPadOS, Mac Catalyst: ``` func ABGroupAddMember(_ group: ABRecord!, _ person: ABRecord!, _ error: UnsafeMutablePointer?>!) -> Bool ``` macOS: ``` func ABGroupAddMember(_ group: ABGroupRef!, _ personToAdd: ABPersonRef!) -> Bool ``` ## Parameters `group` The group you wish to add `person` to. `person` The person to add to `group`. If `person` is `NULL`, this function raises an exception. `personToAdd` The person to add to `group`. If `person` is `NULL`, this function raises an exception. ## Return Value `true` ifsuccessful, false otherwise. For example, if `person` isalready in `group`, this function doesnothing but returns `false`. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)