I am facing an issue in SAP EWM where PPF actions are not triggering automatically during inbound or outbound delivery processing.

The delivery is created successfully in EWM, but the expected follow-up action does not run. For example, warehouse task creation, printing, delivery update, or another automatic action does not trigger after saving or changing the delivery.

In some cases, the action appears in the action profile but has the status “Not Started” or “Not Processed.” In other cases, the action is not visible at all.

I would like to understand how to identify the root cause and fix this issue.

Please help with the following points:

• What is PPF in SAP EWM and why is it used?
• How can we check whether the correct action profile is determined for an inbound or outbound delivery?
• What is the difference between action definition, action profile, schedule condition, start condition, and processing type?
• Why does a PPF action remain in “Not Started” or “Not Processed” status?
• How can we check whether the schedule condition and start condition are fulfilled?
• Can an incorrect warehouse process type, delivery item type, or document status stop an action from triggering?
• How can we manually schedule or process a PPF action for testing?
• Which transaction codes, application logs, and /SCWM/MON nodes should be checked?
• How can we debug a custom PPF action method in ABAP?
• What are the most common configuration mistakes that prevent PPF actions from running automatically?

A simple step-by-step troubleshooting guide with configuration paths, transaction codes, and a real-time project example would be very helpful.