# X_HTTP_PATH_INPUT_CONFLICT

## Means

a path parameter and the request body or query name one key with two values

## Typical cause

a route pinned with a :param template (http: { path }) received the same key in the body or query string with a different value than the URL carries

## Fix

`send the key once: omit it from the body or query string, the URL already carries it (POST /orders/123/refund with body {}) — or send the identical value in both`

[Core and runtime](/error-codes#core-and-runtime)