Dario Zannoni discovered that it looks like Google is phasing out “Call-Only Ads” in favor of Responsive Search Ads.
Key points:
– Adding Assets: Google suggests adding assets to current “Call-Only Ads” (a notification will prompt this in accounts).
– Creation Deadline: After an unspecified period, creating new “Call-Only Ads” will no longer be possible.
– No Automatic Upgrade: Existing “Call-Only Ads” won’t be automatically upgraded to Responsive Search Ads.
For more details check this page.