Create a Contact:

  1. Launch “Contacts
  2. Tap “+
  3. Select to store the contact on “SIM card” or to sync it with a Google account
  4. Enter the contact’s phone number, name, and optional details in the appropriate fields
  5. Tap “Save

Import/Export Contacts:

  1. Open “Contacts
  2. Tap “Menu
  3. Access “Settings” > “Manage contacts
  4. Tap “Move contacts from phone…” and select an account
  5. Tap “Move” > “Import” / “Export Contacts” and perform one of the steps below:
    • To import contacts: tap “import” > “SD card” and select the contacts you wish to import. Then tap “Internal storage” > “Done” > “Import” > “OK
    • To export contacts: tap “Export” > “SD card” and select the desired contacts, then tap “Done” > “Export” > “OK

Add Contacts to Speed Dial:

  1. Launch “Phone
  2. Access the “Contacts” tab
  3. Tap “Menu” > “Speed dial
  4. Select the dial pad number you want to use for speed dialing and the contact to associate with it
  5. Tap “Back” to confirm

Delete Contacts:

  1. Launch “Contacts
  2. Select the contact you want to remove
  3. Tap “Menu” > “Delete
  4. Press “Delete” again to confirm

Create a Caller Group:

  1. Open “Contacts
  2. Tap “Menu” > “Groups
  3. Tap “Create” and enter the desired name for the group
  4. Optionally, select a group ringtone and add the contacts
  5. Tap “Save” to confirm

Add Contacts to an Existing Caller Group:

  1. Open “Settings
  2. Select the desired contact
  3. Tap “Details” > “Edit
  4. Go to “Groups
  5. Tick the check boxes associated with the desired caller group
  6. Tap “Back” > “Save

See More: Samsung Galaxy J2 Pro (2018): Create and Manage Contacts and Caller Groups