https://crm.zoho.com/crm/private/xml/Leads/insertRecords?authtoken=xxxx&scope=crmapi&xmlData=<Potentials><row no="1"><FL val='Potential Name'>First Potential</FL><FL val='Description'>description of the potential</FL><FL val='Closing Date'> 01/04/2009 </FL><FL val='ACCOUNTID'>631505366</FL><FL val='Email'>test@test.test</FL><FL val='Stage'>asdasd</FL><FL val='boolean flag'>TRUE</FL><FL val='product'>FREE</FL><FL val='Date of Birth'> 01/01/1970</FL><FL val='Mailing City'>Germany</FL></row></Potentials>

And i have for result

" Unable to populate data, please check if mandatory value is entered correctly."

I do not understand.

Thank you for your response