Skip to Content
author's profile photo Former Member
Former Member

Synchronisation debugging ?

Hi all,

I was wondering if anybody came across this problem: You have an application with several controls and something goes wrong - an uninstanciated object reference, a control that doesn't have a parent container - something like that.

Now, at PBO the system calls function module AC_SYSTEM_FLUSH which at the end calls



If this one fails (for whatever reason) you'll get an unhandled exception at the end. Well, fair enough, but is there any way to determine <b>which</b> control actually made the flush fail ? Is there any kind of a log for that (like SM21 or so) ? It can be really nasty to track that one down, especially if this problem occurs only once in a while.

Would be helpful for any hint ... and yes, you'll get points 😉


Add a comment
10|10000 characters needed characters exceeded

Assigned Tags

Related questions

1 Answer

  • author's profile photo Former Member
    Former Member
    Posted on Jul 31, 2007 at 11:43 AM

    Take a look in transaction ST11 - this gives a list of lots of the log / trace files SAP keeps and lets you drill into them.

    I would start with the log for the work process where your transaction ran - dev_w0, dev_w1 etc

    You may need to increase the level of data placed in the log temporarily to get the detail you need - this is done in SM50 under the process-->trace menu options. Set them back as soon as possible - the files get large very quickly. You can also view the trace from the view file option of the same menu.

    You may also need to set tracing in the GUI as this is calls to the front end PC - done through the trace tab in the display options pop-up


    Add a comment
    10|10000 characters needed characters exceeded

    • Former Member Former Member

      There are two methods you can use, the first is to activate the context trace. OSS Note 158985 describes how to activate the trace. From that popup, you also deactivate it afterwards and view the trace file.

      The other important step is to select System > Utilities > Autom. Queue: Synchronous Processing just before the screen / action is performed that ends in the AC_FLUSH short dump. The short dump should then indicate (if you drill into ABAP Debug from the short dump) the correct location of the true problem.

      Hope that helps?


Before answering

You should only submit an answer when you are proposing a solution to the poster's problem. If you want the poster to clarify the question or provide more information, please leave a comment instead, requesting additional details. When answering, please include specifics, such as step-by-step instructions, context for the solution, and links to useful resources. Also, please make sure that you answer complies with our Rules of Engagement.
You must be Logged in to submit an answer.

Up to 10 attachments (including images) can be used with a maximum of 1.0 MB each and 10.5 MB total.