Function Call:
add_category
Purpose:
Adds an existing contact to an existing category
Note: this API does not create a category
Parameters:
api_key email_addess category
– The category to which the contact will be added
Return:
status – if error
detail
Example:
http://example.com/a.php/api/add_category?api_key=0c68398f&email_address=test@example.com&category=existing+category+name