<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,"email":"ynm.krishna@gmail.com","country":"India","city":"Bengaluru","FirstName":"Krishna%20","LastName":"","CompanyPhone":"08686818984","CompanyName":"HCL%20","helpYou":"I%20need%20CAN%205%20Channel%20support%20evaluation%20board%20with%20gpio%20operation%20at%2024%20v","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>