---
category: [Administration & Integrations, Platform and Product Extensions, Platform and Product Extensions/Integration, Administration & Integrations/Custom Integrations & Apps, Platform and Product Extensions/Workday Extend]
keyword: [Extend, Model Components, Extend BPs, Extend Business Processes, Model Business Processes, Extend BP]
nav: wcp_docs
parent_url: /wcp_docs/
title: Manage Custom Business Process Events
layout: subsection
---

### Context

<a id="context_N10022_N1001F_N10001"></a>
You can use the Business Process and Custom Business Process REST APIs to manage custom business process events.

### Steps

1.  <a id="step_N1002C_N10029_N1001F_N10001"></a>Make a GET request in the businessProcess service to return all of the comments associated with a business process event.

    Example: `GET https://api.workday.com/businessProcess/v1/events/{id}/comments`

    The response can include the business process comments that display as the Send Back reason on the Approval page of the business process. Example:

    ```
    {
      "total": 1,
      "data": [
          {
              "person": {
                  "descriptor": "Steve Morgan",
                  "id": "{id}"
              },
              "comment": "This is the send back reason.",
              "commentDate": "2018-08-20T19:46:27.403Z"
          }
      ]
    }
    ```

    You can include these comments in the Presentation Components page for the Revise eventTaskDefinition of a custom business process.

2.  <a id="step_N10094_N1002A_N1001F_N10001"></a>(Optional) If you enabled Send Back and configured a Revise eventTaskDefinition, you can make a <i>submitRevise</i> POST request in the customBusinessProcess service for the event you created to move the workflow forward.

    Example: `POST https://api.workday.com/customBusinessProcess/v1/events/{eventID}/submitRevise`



### Related Information

[Reference: Workday Extend API Gateways and Authorization Base URLs](/wcp_docs/dlh1653340161856.html)