Oppo How to Enable or Disable Message Delivery Report
Oppo 3The SMS delivery report notifies us when the SMS has reached the recipient. On Oppo smartphones, the SMS delivery report is deactivated by default, but can be activated in the message settings, even separately for each SIM card.
Android 10 (ColorOS 7.0)






- Open the Messages-App
- Open the Menu
- Tap on Settings
- Tap on More settings
- Tap on Fetch SMS delivery reports
- Enable or Disable SIM1 / SIM2