Updates an existing contact property by key.
API key authentication. Use your telli API key as the bearer token.
1 - 64^[a-zA-Z0-9][a-zA-Z0-9_-]*$OK
1 - 64^[a-zA-Z0-9][a-zA-Z0-9_-]*$string, number, boolean, date, datetime, select, multi_select, phone_number, email system, user, integration Only applicable for select and multi_select data types