# MD for: https://www.mercadopago.com.pe/developers/en/docs/checkout-api-payments/response-handling/data-insertion-errors.md

\> CLIENT\_SIDE > > h1 > > Data entry errors | Code | Description | Description | | --- | --- | --- | | 205 | parameter cardNumber can not be null/empty | Enter card number. | | 208 | parameter expirationMonth can not be null/empty | Select month. | | 209 | parameter expirationYear can not be null/empty | Select year. | | 212 | parameter docType can not be null/empty | Enter your ID type. | | 213 | The parameter cardholder.document.subtype can not be null or empty | Enter your ID. | | 214 | parameter docNumber can not be null/empty | Enter your ID. | | 220 | parameter cardIssuerId can not be null/empty | Enter your bank. | | 221 | parameter cardholderName can not be null/empty | Enter name and surname. | | 224 | parameter securityCode can not be null/empty | Enter security code. | | E203 | invalid parameter securityCode | Check security code. | | E301 | invalid parameter cardNumber | Enter a valid card number. | | 316 | invalid parameter cardholderName | Enter a valid name. | | 322 | invalid parameter docType | Invalid ID type. | | 323 | invalid parameter cardholder.document.subtype | Check your ID. | | 324 | invalid parameter docNumber | Invalid ID. | | 325 | invalid parameter expirationMonth | Invalid month. | | 326 | invalid parameter expirationYear | Invalid year. | | default | Another error code | Check data. |