Consider deprecating old services API

**Problem**
When working with hooks, the error messages could be more descriptive.

**Suggestion**
Improve error handling and add detailed error messages.

**Context**
This would help with debugging and maintenance.

Start by locating the hooks and the old services API entry points. Review the existing error-handling paths and determine which descriptive messages and deprecation scope the issue requires; done means the intended API transition and error-message changes are clearly defined and covered by the relevant checks.

Written by the indexing model from the issue text.