# 2nd November 2025 — Walk URL and Time Validation [#72](https://github.com/nbarrett/ngx-ramblers/issues/72)
## [build 343](https://github.com/nbarrett/ngx-ramblers/actions/runs/19027970161) — [fixes #72](https://github.com/nbarrett/ngx-ramblers/issues/72) — [commit b798b32](https://github.com/nbarrett/ngx-ramblers/commit/b798b32)

Prevent walk URL regeneration once published to Ramblers and enforce end time validation to maintain data integrity.

**Where to Find It**

- **Walks → Walk Editor**: URL and timing controls
- **Ramblers Integration**: Published walk URL management

**Benefits**

- **Stable URLs**: Walk URL preserved once published to Ramblers (no regeneration)
- **Required End Time**: Validation prevents end time from being cleared
- **Clean Unpublish**: Both ID and URL cleared when walk unpublished from Ramblers
- **No Null URLs**: Prevents null URL from being set during unpublish operation

**Technical Details**

- Prevent automatic URL regeneration for walks already published to Ramblers
- Add validation rule preventing end time field from being cleared
- Clear both Ramblers ID and URL when walk is unpublished
- Ensure URL field never set to null value during state transitions