> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tesouro.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Dispute management

> Manage chargebacks and disputes through the Partner Portal UI or API by accepting, challenging, and uploading supporting evidence.

Tesouro's dispute management system allows partners to handle disputes either through the Partner Portal UI or by directly integrating with our API. When a cardholder disputes a transaction, you can either accept the dispute or challenge it by providing supporting evidence.

<Note>
  The UI and API currently support managing first chargebacks and representments. Responding to
  cases in other dispute lifecycles, i.e. retrieval request, pre-arbitration, arbitration,
  compliance, is currently handled via direct contact with Tesouro.
</Note>

### Partner portal UI

Use our [web interface](https://app.tesouro.com/disputes) to:

* Review dispute details and status
* Accept or challenge disputes
* Upload supporting evidence files

### Direct API integration

Implement dispute management directly in your systems:

* **[Respond to disputes](/acquiring/disputes/respond)**: GraphQL mutation to accept or challenge disputes
* **[Upload evidence](/acquiring/disputes/upload-evidence)**: REST endpoint to submit supporting documentation

All dispute responses must be submitted before the dispute's expiration date. For challenging disputes, at least one piece of supporting evidence must be included.