German suppliers expect customers to communicate requirements clearly. Vague requests and unstated expectations are unfair to suppliers who must guess what you want. Clear communication is a customer obligation, not just nice-to-have.
If you want good service from German suppliers, tell them what you need. Provide detailed specifications in business contexts. Ask clear questions in retail contexts. Explain situations fully in service contexts.
Suppliers cannot read minds. Customers who provide unclear requirements and then complain about results have failed their own duty. Clear communication serves both parties and is part of what customers owe.
Comments