SAP ABAP troubleshooting – Collecting ABAP traces & performance traces using the Single Transaction Analysis tool ST12

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 SAP ABAP troubleshooting: Collecting ABAP traces & performance traces using the Single Transaction Analysis tool ST12:

The Single Transaction Analysis tool(Tcode ST12), has the ability to collect both ABAP traces & performance traces with an integrated user interface. It offers different methods for tracing & also allows the recording of traces of ABAP transactions, ABAP reports, Web dynpro pages, BSP pages & background jobs.

The traces collected by this tool can be used to investigate code errors & performance problems. This blog will show you how to collect & display the traces as well as common problems you may have to deal with while using ST12.

Overview:

  1. Introduction + Overview
  2. How to collect and display traces of:
  3. a) Specific user or task
  4. b) Work process
  5. c) A transaction or program
  6. Scheduling traces
  7. Common issues

Notes:
Service Tools for Applications (ST-A/PI)
https://support.sap.com/supporttools

Installation:
Note 69455 : Service tools for Applications ST-A/PI [tcode ST14, report - RTCCTOOL, tcode ST12]

How to use:
Note 755977 – Transaction ST12 “ABAP Trace for SAP Early Watch or Going Live”

Tcode ST12 – collects traces, mix of tcode SE30, tcode ST05.

Troubleshooting, program working, consider using Tcode ST12 Comes with ST-API

This will help to provide SAP a trace

This is Not officially supported, no official documentation

Let's Run the trace

Trace results - 

Tips to enter the user name & then select the server : it will show the server and the user is connected to

Note: Avoid activating on all servers

Task type:

In the middle:

performance trace : Tcode ST05
ABAP trace : Tcode SE30
Statistical records : Tcode STAD
Internal tables : if selected then we will check for read or loop
Size and duration : 2 options provided , he usually selects the maximum

Context trace: it collect across multiple systems.

Further options dropdown - 

If you trace your own user, this may track tcode ST12 itself & could be confusing:

Watch the size of the trace & the filters


Trace did not work : then yellow arrow

This is where to look for performance problems

Show or Hide option

Performance trace : equivalent of tcode ST05

Current mode : only collects for certain unit

Should schedule a trace to run for a job to run later

Some Questions and  Answers for your reference:

Q1: The HTTP's trace us for Web dynpro application : does this also work for Floor Plan Manager (FPM)
Ans: Cannot tell:  if it is http & connect to app server, yes.
Q2: How do I provide these traces to SAP in an OSS calls?
Ans: Collect traces, open incident & indicate which trace should be analyzed: this should speed up incident.
Q3: Is there any shortcut for switching the trace on & off? If yes what is it?
Ans: No.
Q4: Could this be used for Multi level End to End Scenario for example:  iOS based Fiori App access the Gateway and Gateway access the ERP instance. lets know whether the issue is on Gateway or ERP instant.
Ans: Yes, backend call is http call for Fiori.

Hope this helps. Thank you everyone.

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