担当者

1. Origins, structure, and basic meaning

• Structure: 担当者 is read たんとうしゃ: 担当 concerns an assigned task, and 者 identifies a person.
• Basic usage: 詳しい内容は担当者に確認してください。 asks the listener to confirm the details with the person handling the matter.

2. Common pitfalls and similar expressions

• Assignment and responsibility
  • 担当者 identifies someone by their assigned work, while 責任者 emphasizes responsibility. One person may hold both roles.
• Task and person
  • 担当する describes handling a task; 担当者 names the person. 新しい担当者 refers to the new person handling it, not to the task itself.