A media buyer wants to create 50 new line items quickly by using a fixed spreadsheet template. Which tool allows for this bulk creation and editing?

Structured Data Files (SDFs) are the bulk management tool in Display & Video 360 for creating or editing many campaigns, insertion orders, or line items at the same time. Google explicitly states that SDFs are useful when users need to quickly create many line items and make bulk edits across them. That matches a workflow where 50 new line items need to be created from a fixed spreadsheet template instead of being built one by one in the interface. The spreadsheet-driven upload process is the defining capability that makes SDFs the correct choice here. Google Help