How do I delete phone numbers without deleting the complete contact

[AC Question]

My Samsung Galaxy J3V seems to only allow deleting 8 the complete contact not j5 the phone numbers

 

[Rukbat]

There has to be at least 1 phone number for a contact, but if you put in all 1s, it should work.

 

[B. Diddy]

Welcome to Android Central! You should be able to have a contact with an email address only, without a phone number. Open your Contacts app, select the contact in question, tap the Edit button, then tap the X next to the phone number. Now Save the contact. Does that work?