2481513 - 'Required field with index 0' error while UPSERT operation

When performing the UPSERT operation to update a field, getting required field error in the response:

<m:properties>

<d:key m:null="true"></d:key>

<d:status>ERROR</d:status>

<d:editStatus m:null="true"></d:editStatus>

<d:message>date1 required, date2 required, country required, for templateId 123, with the index 0</d:message>

<d:index m:type="Edm.Int32">0</d:index>

<d:httpCode m:type="Edm.Int32">500</d:httpCode>

<d:inlineResults m:type="Bag(SFOData.UpsertResult)"></d:inlineResults>

</m:properties>

SAP SuccessFactors Recruiting Management

OData API, Upsert operation, Upsert, Required field with index error, candidate, application, jobapplication, candidatelight. , KBA , LOD-SF-RCM-API , Webservices & APIs , Problem