Which term describes sheets designated for certain users to enter data?

The term that accurately describes sheets designated for certain users to enter data is "User Assigned Sheets." This designation specifically indicates that the sheets are created with the intention of being used by particular individuals or roles within the organization. User Assigned Sheets allow tailored access and configurations that ensure only designated users can input or modify data relevant to their areas of responsibility. This functionality is important for maintaining data integrity and accountability within the planning process.

In contrast, the other options do not accurately capture this specific intent. Specialized Sheets could imply customization for particular functions but lacks the user-specific aspect. Data Entry Sheets is a broader term that encompasses any sheet used for data entry and does not indicate user assignment. Function-Specific Sheets may indicate sheets tailored for specific functions, yet it also does not focus on user assignments, which is the crux of the question. The emphasis on user assignment is what makes "User Assigned Sheets" the correct term in this context.