O591 is a SAP tcode coming under IS-OIL module and IS-OIL component. View some details about O591 tcode in SAP.
- O591 tcode used for : QCI CUSTOMIZED MESSAGE HANDLING in SAP
- Module : IS-OIL (Industry Solution Oil)
- Parent Module : IS-OIL (Industry Solution Oil)
- Package : OIB_QCI (QCI Quantity Conversion Interface)
- ABAP Program : ROIBCST0

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Definitions
What is SAP ?SAP is the short form of Systems, Applications & Products in Data Processing. It is one of the largest business process related software. This software focused on business processes on ERP & CRM.
What is transaction code in SAP?Transaction code shortly known as tcode, is a shortcut code to access different functional areas in SAP. It avoid users from long menu path to reach a report. Instead of that users can type the corresponding transaction code and press enter, the corresponding SAP page will load. It’s a good practice to remember or note down the transaction codes that we need to use in our regular work.
O591 related transaction codes
| Tcode | Note |
|---|---|
| O591 | QCI CUSTOMIZED MESSAGE HANDLING |
| O5AX | TD Customized Message Handling |
| O5Z0 | TDP CUSTOMIZED MESSAGE HANDLING |
| O5PL | TPI Customized Message Handling |
| O3D2 | QCI:Test RFC Server Prog./Call exter |
| O3QCITEST | QCI TEST Calculations |
| S_SO5_65000686 | Customizing Message Handling QCI |
| OF39 | Customized update profile |
| O5N7 | Customized Messages for BDRP |
| S_SO5_65000685 | QCI BAdI Navigation from Customizing |
| S_SO6_65000981 | QCI BAdI Navigation from Customizing |
| S_SO6_65000982 | QCI BAdI Navigation from Customizing |
| S_SO7_65000978 | QCI BAdI Navigation from Customizing |
| S_SO7_65001251 | QCI Default determination |
| O3C1 | Create Oil Conversion Defaults |