[Bug]: Push Notification Configurations, the "Set" method was changed to "Create". This change was lost during refactoring.

### What happened?

When the protocol was updated to support multiple Push Notification Configurations, the "Set" method was changed to "Create". This change was lost during refactoring.

### Relevant log output

```shell

```

### Code of Conduct

- [x] I agree to follow this project's Code of Conduct