Find partner.
This endpoint is used to get a partner based on its code.

Retrieves a specific partner by its unique business code with complete entity details.
Returns full partner information including business name, contact details, location, and administrative data.
Validates partner existence and provides detailed error messages for debugging and user feedback.
Performs exact match lookup using the partner's unique business code (Codice) for precise record retrieval.
The partnerCode parameter is case-sensitive and must be an exact match with the stored partner code.
Essential for partner verification, business relationship management, and administrative operations.
Used for partner profile access, business validation, and integration with external systems.
Returns complete partner entity including all properties and business relationship information.