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

# Add evidence to an existing case event

> Add evidence to an existing case event.

POST/cases/\{case\_token}/events/\{event\_token}/evidences

Add evidence to an existing case event.

## Path parameter

| Fields | Description |
| - | - |
| case\_token string  Required | Unique identifier of the dispute case, generated by Marqeta. **Allowable Values:**  36 char max |
| event\_token string  Required | Unique identifier of the case event, generated by Marqeta. **Allowable Values:**  36 char max |

## Body field details

| Fields | Description |
| - | - |
| pc\_amount string  Required | Amount of provisional credit granted or reversed. **Allowable Values:**  Any positive decimal greater than zero, written as a string |
| webhook\_id string  Optional | Marqeta-generated identifier of the webhook associated with the case event. **Allowable Values:**  255 char max |
| notes string  Optional | Notes about the evidence. **Allowable Values:**  255 char max |
| evidences array of objects  Required | One or more objects containing evidence about the dispute. **Allowable Values:**  Valid array of `evidences` objects |
| evidences\[].**evidence** string  Required | Text containing evidence or evidence identifiers (such as a case document ID). **Allowable Values:**  255 char max |
| evidences\[].**evidence\_type** string  Required | Type of evidence submitted (ID, text content, or other). **Allowable Values:**  `COMMUNICATION_CONTENT`, `EXTERNAL_TRANSACTION_ID`, `CRM_ID`, `CASE_DOCUMENT_ID`, `OTHER`  For `ProgramGrantedProvisionalCredit` or `ProgramRevertedProvisionalCredit` events, at least one submitted `evidence_type` must be `EXTERNAL_TRANSACTION_ID`.  For `ProgramCommunicatedGrantingProvisionalCredit` or `ProgramCommunicatedRevertingProvisionalCredit` events, at least one submitted `evidence_type` must be `COMMUNICATION_CONTENT`, `CRM_ID`, or `CASE_DOCUMENT_ID`. |

## Response body

| Fields | Description |
| - | - |
| pc\_amount string  Returned | Amount of provisional credit granted or reversed. **Allowable Values:**  Any positive decimal greater than zero, written as a string |
| webhook\_id string  Conditionally returned | Marqeta-generated identifier of the webhook associated with the case event. **Allowable Values:**  255 char max |
| notes string  Conditionally returned | Notes about the evidence. **Allowable Values:**  255 char max |
| evidences array of objects  Returned | One or more objects containing evidence about the dispute. **Allowable Values:**  Valid array of `evidences` objects |
| evidences\[].**evidence** string  Returned | Text containing evidence or evidence identifiers (such as a case document ID). **Allowable Values:**  255 char max |
| evidences\[].**evidence\_type** string  Returned | Type of evidence submitted (ID, text content, or other). **Allowable Values:**  `COMMUNICATION_CONTENT`, `EXTERNAL_TRANSACTION_ID`, `CRM_ID`, `CASE_DOCUMENT_ID`, `OTHER` |

## Sample request

```json JSON lines wrap theme={null}
{
  "pc_amount": "109.45",
  "webhook_id": "webhookid-123",
  "notes": "Granted pc on date mentioned",
  "evidences": [
    {
      "evidence": "evidence 111",
      "evidence_type": "OTHER"
    }
  ]
}
```

## Sample response

```json JSON lines wrap theme={null}
{
  "pc_amount": "109.45",
  "webhook_id": "webhookid-123",
  "notes": "Granted pc on date mentioned",
  "evidences": [
    {
      "evidence": "evidence 111",
      "evidence_type": "OTHER"
    }
  ]
}
```


## Related topics

- [Disputes Evidence Collection Overview](https://www.marqeta.com/docs/core-api/disputes-evidence-collection.md)
- [Retrieve evidence for a case event](https://www.marqeta.com/docs/core-api/disputes-evidence-collection/retrieve-case-event.md)
- [Create a dispute case event with evidence](https://www.marqeta.com/docs/core-api/disputes-evidence-collection/create-case-event-with-evidence.md)
- [Create event](https://www.marqeta.com/docs/core-api/disputes-pulse/create-event-pulse.md)
- [Transitioning Cases](https://www.marqeta.com/docs/developer-guides/disputes-portal-transitioning-and-closing.md)