Hello Pavel,

The workflow for Service Request needs to be configured.... The configuration is mentioned in the help text in SPRO

Define Workflow Settings for Checklist

Use

You can enable SAP Business Workflow for checklist processing so that users can be notified about the checklist steps for which they are responsible.

Requirements

You have enabled the standard settings for SAP Business Workflow.

Activities

To configure the workflow template, do the following:

1. Launch the

Workflow Builder tool (transaction SWDD).

2. Search for the workflow template CHKLST_BTXXX, where XXX stands for the last three digits of the relevant business object number.

For example, for workflow integration with a checklist for a service request or incident, the business object number is BUS2000223, and the workflow template is CHKLST_BT223.

3. Choose the

Basic Data icon in the toolbar.

4. Choose

Start Events.

5. Make sure that the

CHKLSTSTEPSTARTED event is active.

6. In the

Navigationarea, choose the workflow step Process Checklist Step.

7. Display the task.

8. Choose

Additional Data -> Agent Assignment -> Maintain.

9. Select the task

Process Checklist Step for the relevant business object number, and choose Attributes.

10. Ensure that

General Task is selected, and choose Transfer to confirm the selection.

To ensure that all business partners receive e-mails and work items sent by workflow, make the following settings in the Maintain Business Partner tool (transaction BP):

1. Search for a business partner.

2. In

Change in BP Role, choose Employee.

3. Choose

Identification.

4. In the

Employee Data section, ensure that a valid user name is entered.

To enable workflow integration with a checklist, go to the Define Checklist Profiles view in Define Checklist Profiles, and select the Enable Workflowcheckbox for the relevant profile.

Hope this helps

Deepak

Please check this;

https://blogs.sap.com/2018/11/29/email-notification-for-service-request-checklists/