# u31bc user exit

User exit u31bc implements a Proc subroutine
call.

## Syntax

```
u31bc
file.reference item-ID
```

## Parameter(s)

| file.reference | Name of the file. |
| --- | --- |
| item-ID | Subroutine to call in the given file reference. |

## See also

- [call processing code](https://d3codex.com/processingcodes/call-processing-code/)
- [PROC processor user exits](https://d3codex.com/proc/proc-processor-user-exits/)
- [u41bc user exit](https://d3codex.com/proc/u41bc-user-exit/)
- [u51bc user exit](https://d3codex.com/proc/u51bc-user-exit/)

---
Source: https://d3codex.com/proc/u31bc-user-exit/ - part of the D3Codex reference.