Improve store performance

**Problem**
When working with services, 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 service and store error-handling entry points and reviewing the existing error messages. Clarify whether the intended change is store performance or more descriptive service errors; done should include a defined scope and checks showing the resulting errors are more useful without breaking existing behavior.

Written by the indexing model from the issue text.