Wednesday 13 January 2021

First Preparation Steps of a SAP Unicode Conversion


First Preparation Steps of a SAP Unicode Conversion

There are two types of code page in SAP system

  1. Single code page 
  2. Multiple code page

All Code Page Configurations

Part : 1
Start to Prepare the Non-UC System for Unicode conversion

Execute Tcode : SPUMG provides a set of database scans as tabstrips. Before you run the first scan you might want to read SAP Note 1096903  which provides information about how to split very large tables before scanning them. Then you check the consistency of the non-Unicode database with the first scan in tcode SPUMG.

The Consistency Check

In Single Code Page systems this is the only available scan. In MDMP (Multi Display Multi Programming) systems there are a couple of other scans which are described in section Advanced Preparation Steps

Read the information on the entrance screen 'Welcome to SPUMG' and process the steps described there. Once you are finished with the first steps, the Tcode SPUMG main screen will be opened. Run the Consistency Check now until it is finished completely.

After the Consistency Check

The conversion preparation for Single Code Page system is nearly done whereas MDMP (Multi Display Multi Programming) systems need more scanning. Please follow the Documentation and Troubleshooting for details about the final preparation steps in Single Code Page systems.

To get an overview of the Tcode SPUMG preparation steps for MDMP (Multi Display Multi Programming) systems,

Unicode Conversion Overview Guide

Steps You Can Start With Before the Conversion

Check software requirements and keep your system up-to-date

Download the applicable Unicode Conversion and System Copy Upgrade etc. Check required software versions (support packages, kernel patches) and apply the latest support package and kernel patch. 

Textflag Handling

All LANG fields in Data Dictionary (DDIC) objects which are delivered by SAP have an attribute Text Lang. (indicator for a language field). This indicator specifies that the LANG field determines the code page of the character data in that table.

Reduce Data Volume

Data which has been archived or deleted means less preparation workload and shorter system downtime. In the Unicode Conversion Guide you will find automatic methods and manual steps and links to other documents.

Unicode Enabling of ABAP Programs

Make sure your own ABAP programs and SAP programs you modified are adapted to Unicode syntax and runtime restrictions.

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