> For the complete documentation index, see [llms.txt](https://appmaster.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://appmaster.gitbook.io/docs/business-logic/block/user-created-bps.md).

# User-Created BPs

Call any of the custom business processes you have created.

### Flow Connections <a href="#flow-connections" id="flow-connections"></a>

* \[Input] In - starts the block's execution.
* \[Output] Out - activates when the block has finished its execution.

### Data Connections <a href="#data-connections" id="data-connections"></a>

* \[Input] Input (multiple, any) - input variables defined in the business process being called.
* \[Output] Output (multiple, any) - output variables defined in the business process being called.&#x20;