<table  border='1' width='40%'><tr><th>Input Text</th><th>SF Response</th></tr><tr><td>https://vvdntech.my.salesforce-sites.com/services/apexrest/CreateLead?data={"checkboxField":false,"FirstName":"Mahesh%20Kumar%20","LastName":"","email":"shantielectricalconstrution@gmail.com","CompanyPhone":8968561594,"CompanyName":"Shanti%20Electrical%20Construction%20","helpYou":"We%20need%20HV%20Tester%205KV100mA,%20Qty-02%20Nos%20in%20Delhiand39;s%20","role":"Proprietor%20","lead_source":"vvdntools"}</td><td>[{"errorCode":"APEX_ERROR","message":"System.DmlException: Insert failed. First exception on row 0; first error: REQUIRED_FIELD_MISSING, Required fields are missing: [LastName]: [LastName]\n\nClass.CreateLeadApi.createLeadRecord: line 35, column 1"}]</td></tr></table>