DoubleClick Will Drop Support for Entity Read Files (ERFs)
https://ads-developers.googleblog.comGoogle is announcing the deprecation of Entity Read Files (ERFs). Users currently retrieving Display & Video 360 resource information from ERFs should begin migrating to using the Display & Video 360 (DV360) API or Structured Data Files (SDFs).
ERFs will continue to be generated and available for download for the immediate future. However, users should be prepared for ERFs to sunset at a later date.