Sheet to Contacts
Lets you to create new contacts and modify in Google Contacts from your data in the spreadsheet.
Sheet to Contacts add-on for Google Sheets integrates your Google Contacts with Sheets, allowing you to compose and update contacts from your spreadsheet data.
Free version restrictions:
* Create/Update 2 contacts at a time
* Create 1000(Gmail); 2000(Google Workspace) contacts per day (Limit set by Google Quota)
* Create contacts to specific group
* Update the contact fields in a click, while spreadsheet contact info are changed/modified/updated
Video help: https://youtu.be/wf8qX574EEQ
For more details about quotas visit: https://developers.google.com/apps-script/guides/services/quotas