How to Create CustomModule Records Potentials & Account Lookup via API?

Hi all,

I'm using the CRM and trying to create a new record in CustomModule1 via API. The two lookup fields (Potentials & Account) in the new record should be filled during this create. Zoho support adviced the following method:

You can refer the code below . You just have to replace your own auth token and potential id. Make sure you enter the custom look up field name in place of Potential_ID .

<CustomModule>

<row no="1">

<FL val="CustomModule1 Name">Test Record</FL>

<FL val="Potentials_ID">1201542000003472439</FL>

</row>

</CustomModule>

But that didn't work, so I tried using the following POST call instead (found in Zoho API methods):

<FL val="CustomModule1 Name">Test Record</FL>

<FL val="SEMODULE">Related Sales Opportunity</FL>

</row>

</CustomModule1>

This however, isn't working either. I'm not even certain what SEID is supposed to represent. Can anyone point me in the right direction what syntax to use?