Fetch Related Record

Fetch Related Record

Hi,

I am trying to fetch related accounts of contacts. 

https://crm.zoho.com/crm/private/xml/Accounts/getRelatedRecords?authtoken=AUTHTOKEN&scope=crmapi&id=CONTACTID&parentModule=Contacts


However, this returned me the error of 

<code> 4401 </code>
Unable to populate data, please check if mandatory value is entered correctly.

Any ideas how can i do this?

Thanks.