How to Stop a Hanging SAP Transaction?

Let’s take a short break from serious topics and go over a quick primer on how to stop a hanging transaction.

Spoiler alert You probably won’t find anything new here—but it might still be helpful.

You’ve encountered a program that was clearly not written with much care. An example of such a program is shown in the following video clip.

Click the top-left corner of the SAP Logon window and select Stop Transaction from the context menu.

Here’s the result:

Use transaction SM50. We’ll continue with the same example.

Note: If your application server has multiple active instances, you may first need to open transaction SM51 and select the appropriate one.

See also: Architecture of SAP NetWeaver Application Server ABAP

This is a more radical method: terminating the hanging user session altogether.
You can do this using transaction SM04. For example: