Central Changeover (SAP Library - European Monetary Union: Euro (CA-EUR))

Central Changeover

Purpose

Central changeover is carried out by the system administration who performs the individual activities in the IMG in the order described there. The changeover package contains all the programs required to perform the changeover and is started by status management.

Prerequisites

· You must have completed all preparation work in your components.

· The members of the departments responsible for changeover have indicated that all preparation work is complete.

· Changeover within test system: You must ensure that all the data you copied from your productive system is as up-to-date and complete as possible.

· Changeover within production system: You already successfully carried out changeover in your test system.

Process Flow

Central changeover comprises three basic activities:

1. Preprocessing:

You copy the changeover package.

Specify the currencies that are to be included for changeover.

Include your own developments.

Analyse your dataset for possible inconsistencies.

Take samples of data so that you can carry out auditing within Financial Accounting later.

Carry out the run time forecast .

ANALYZE Phase

Analyzing your dataset forms a central part of your preparation activity. You can either have the system start all the analysis programs in the correct sequence automatically, or you can start each program separately. For further information on the sequence in which you run these programs and the names of the report programs started, refer to the IMG.

2. Changeover of Tables:

a) Carry out the necessary system settings.

b) Set the system block

c) Start the changeover.

FILL Phase

In the R/3 System, the conversion routines for converting table fields are stored in control tables. These control tables are already filled in the standard system. Initially, tables that are not created until you begin customizing your system are not included in the changeover process. During the FILL phase, these tables are then included in the control tables. The loading programs determine configured currency types and currencies and store these in the organization tables.

The individual programs belonging to this phase are listed under Reports in the FILL Phase.

GENERATION Phase

a) Report program EWUWTLS optimizes the control table entries using the currency types used in the system.

b) Report program EWUGENEW generates a conversion report program for each table using the control tables.

CONVERSION Phase

The generated report programs convert the tables.
Special report programs take into consideration complex circumstances that can arise during conversion and for which no report programs are generated.
Report program RFEWUDOC converts all financial accounting documents and reconciles the balances.

RECON Phase

The new data records are reconciled.

The individual programs belonging to this phase are listed under Reports in the RECON Phase.

3. Postprocessing:

a) Carry out auditing in Financial Accounting.

b) Start the postprocessing programs.

Reconciling your dataset forms the major part of your postprocessing activity. You can either have the system start all the analysis programs in the correct sequence automatically, or you can start each program separately. For more information on the sequence in which you run these programs and the names of the report programs started, refer to the IMG.

Result

READY Phase

Central changeover is complete. The user departments can now begin the cleanup process.