---
title: "Replace the action on an existing MCC constraint"
method: PATCH
path: "/cards/{cardId}/mcc-constraints/{mccCode}"
---

# Replace the action on an existing MCC constraint

`PATCH /cards/{cardId}/mcc-constraints/{mccCode}`

This operation requires an authentication scheme, `HMAC`, that the API's document does not define, so its parameters and responses are not shown here. They are in the [OpenAPI document](https://skmtc.dev/modulrfinance/apis/modulr-api/revisions/f80e423a3fda?raw).

---

[API](https://skmtc.dev/modulrfinance/apis/modulr-api.md) - [All operations](https://skmtc.dev/modulrfinance/apis/modulr-api/llms.txt) - [OpenAPI document](https://skmtc.dev/modulrfinance/apis/modulr-api/revisions/f80e423a3fda?raw)