# Envisso Integration Hub

## Docs

- [Data Types](https://docs.envisso.com/data-dictionaries/data-types.md): Valid data types and expected formats for CSV columns.
- [Dispute Reason Codes](https://docs.envisso.com/data-dictionaries/dispute-reason-codes.md): Reason codes used for disputes across major card networks.
- [Data Dictionaries](https://docs.envisso.com/data-dictionaries/index.md): Reference tables for integrating with Envisso — types, registration IDs, dispute codes, and MCCs.
- [Merchant category codes (MCC)](https://docs.envisso.com/data-dictionaries/merchant-category-codes.md): Reference list of Merchant Category Codes (MCC) and their descriptions.
- [Merchant registration ID types](https://docs.envisso.com/data-dictionaries/merchant-registration-id-types.md): Country-specific merchant registration ID types and formats required for data submission.
- [Data Security FAQ](https://docs.envisso.com/data-security-faq.md): How Envisso secures client data, infrastructure, and operations.
- [Envisso Integration Hub](https://docs.envisso.com/index.md): Everything you need to integrate your data with Envisso.
- [Integration FAQ](https://docs.envisso.com/integration-faq.md): Common questions about integrating with Envisso.
- [Integration Template Files](https://docs.envisso.com/integration-template-files.md): Download CSV templates for each file required for integration with Envisso.
- [Authorisations File](https://docs.envisso.com/sending-files/authorisations-file.md): Specification for the daily authorisations file delivered to Envisso.
- [Disputes File](https://docs.envisso.com/sending-files/disputes-file.md): Specification for the daily disputes file delivered to Envisso.
- [Sending Files](https://docs.envisso.com/sending-files/index.md): Merchants, authorisations, transactions, and disputes — how and when to send each file.
- [Merchants File](https://docs.envisso.com/sending-files/merchants-file.md): Specification for the daily merchants file delivered to Envisso.
- [Transactions File](https://docs.envisso.com/sending-files/transactions-file.md): Specification for the daily transactions file delivered to Envisso.
- [SFTP Account Setup](https://docs.envisso.com/sftp-account-setup.md): Set up secure file transfer to deliver integration files to Envisso.
- [Support](https://docs.envisso.com/support.md): Contact and resources for integration support.