Questions about customer file management

카카오모먼트 API
#1

As indicated in the document [Customer file management | Kakao Developers Customer file management] ,

  1. Does the system only support replacing files, when I want to append some ADIDs to the current file, can it also support incrementally adding ADIDs in current file without uploading the existing ones?
  2. After editing, I noticed that Customer file’ ID has changed. Will this affect the ad targeting for those currently using this file? In modifying status, whether the targeting ad group run normally without affecting expenses and conversions?
  3. Can I download existing data through successFileUrl?
#2

  1. Currently, we only support replacing files.

  2. For editing customer target, Ad group uses a file before modification. so there is no affect to ad group.
    Once the modification is complete, Ad group will use a modified files.

  3. It’s a function that we don’t provide

thanks