'''Mandatory fields''' to add new records:<br/>
objectid - is the [[Determining_the_opportunityid|Opportunity ID]] where the user will be associated to.<br/>
contactid - [[Determining_the_userid|User ID ]] rolename / roleid - association role of the user<br /> isupdate isupdate - "1" for yes to update and "0" for to add new record
--End custom parameter--
<br />Note: To test use Postman.
The API URL for upload file will be: