Here is how you can upload multiple files for your advertisements:

  1. Navigate to the advertiser you want to upload the bulk file for
  2. Click on the “Bulk file upload” button
  3. A new section will appear. Enter your destination URL for the uploads
  4. Click on “Drop files here to upload”
  5. Once the files have been uploaded, you will see the new advertisements, using the standard banner ad format, under the list of active advertisements

Here’s a short video to guide you: