> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/server/reference/error-codes/mariadb-error-codes-4100-to-4199/e4187.md).

# Error 4187: OUT or INOUT argument for function is not allowed here

| Error Code | SQLSTATE | Error                                 | Description                                                  |
| ---------- | -------- | ------------------------------------- | ------------------------------------------------------------ |
| 4187       |          | ER\_SF\_OUT\_INOUT\_ARG\_NOT\_ALLOWED | OUT or INOUT argument %d for function %s is not allowed here |

## Possible Causes and Solutions

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