---
title: systemSharingUIDidStopSharingBlock
framework: cloudkit
role: symbol
role_heading: Instance Property
path: cloudkit/cksystemsharinguiobserver/systemsharinguididstopsharingblock-4g5bn
---

# systemSharingUIDidStopSharingBlock

A callback block the system invokes after the success or failure of a share delete by the system sharing UI.

## Declaration

```occ
@property (copy, nullable) void (^)(CKRecordID *, NSError *) systemSharingUIDidStopSharingBlock;
```

## Discussion

Discussion The system invokes this block on the success or failure of a CKShare delete when the user decides to stop sharing through the system sharing UI. Each CKSystemSharingUIObserver instance has a private serial queue. The system uses this queue for all callback block invocations.

## See Also

### Accessing sharing blocks

- [systemSharingUIDidSaveShareBlock](cloudkit/cksystemsharinguiobserver/systemsharinguididsaveshareblock-39zlv.md)