# services.<name>.concurrency_policy

> What to do if a cron run is still going when the next is due.

What to do if a cron run is still going when the next is due.

- **Type:** `forbid`, `allow`, `replace`
- **Default:** `forbid`
- **Since:** manifest v1

## Example

```yaml
services:
  web:
    concurrency_policy: forbid
```

## See also

- [services](/docs/manifest/services/): all fields of `services`
- [guv.yaml reference](/docs/manifest/)