Add contacts to an existing group (JSON or CSV upload)
POST /v1/contacts/groups, then upload contacts to it.
POST /v1/contacts/groups.phone_number (required).
Optional fields: first_name, last_name, emailphone_number (or phone, mobile, cell) column.POST /v1/contacts/groups.| Column | Alternatives |
|---|---|
phone_number | phone, mobile, cell |
first_name | firstname, first |
last_name | lastname, last |
email | - |
address_line_1 | address, street |
city | - |
state | - |
zip_code | zip, postal_code |
extra_data.