# MD for: https://www.mercadopago.com.ar/developers/es/docs/vault-migration/output-format.md

\# Output format for migrating vaults to tokenization Example of an output file: \`\`\`csv "STATUS","CUSTOMER\_ID","CARD\_ID","REFERENCE\_ID","STATUS\_DETAIL" "FINALIZED","1234-cust\_id","270","ref\_id\_externa\_2p\_1800008","Card ID was updated" "FINALIZED","1234-cust\_id","270","ref\_id\_externa\_2p\_1800010","" "FINALIZED","1234-cust\_id","270","ref\_id\_externa\_2p\_1800007","Card ID was updated" "FINALIZED","1234-cust\_id","270","ref\_id\_externa\_2p\_1800006","Card ID was updated" "FINALIZED","1234-cust\_id","270","ref\_id\_externa\_2p\_1800009","Card ID was updated" "REJECTED","","","0005123500001","Card date expired" "REJECTED","","","0017683000001","Email syntax invalid" \`\`\` | Field | Description | Required or Optional | |---|---|---| | \`status\` | Result of the linkage. Rejected - An error occurred; Finalized - Successful completion. | Required. | | \`customer\_id\` | Identifier ID for the relationship between the payer and the seller. | Required. | | \`card\_id\` | ID that represents the card in the linkage. | Required. | | \`reference\_id\` | Payer reference in the seller's system (external\_reference). | Required. | | \`status\_detail\` | Additional detail of the linkage. In case of errors or a card update, some of the values are:  
1\. The card ID was updated,  
2\. Error registering the customer,  
3\. Error linking the customer to a card,  
4\. Error generating the token,  
5\. The card's date is expired,  
6\. The email format is invalid,  
7\. The email syntax is invalid,  
8\. The card is not valid. | Required. |