EWM Change ERP system

former_member637877 · ‎04-14-2023

Objective

The purpose of this blog is to give you some insights about the required configuration and manual steps if you change the ERP system connected to EWM.

Business Case

If you use a Decentralized EWM system, the database should be connected to an ERP system. It can be an SAP or non-SAP system.

Recently, I worked on a migration project. We changed the ERP system from SAP PXX to SAP PYY.

I mentioned below the required configuration points and manual steps for this case.

/!\ There are some Basis setup like the queues which should be done. I will mention only the functional settings.

EWM Configuration

Create new BSG

Table /SAPAPO/V_SYSLST

You define a new BSG for the new ERP system PYY

Assign logical system to BSG

Table /SAPAPO/V_BSGSET

Assign the ERP and EWM systems to the new BSG

Update recipient depedent control of processes

Table /SCWM/TCTRLPROCS

Update the warehouse number mapping

Table /SCWM/TMAPWHNUM

Update route mapping

Table /SCWM/TMAPROUTE

Update storage location mapping

/SCWM/V_TMAPSTLO

Delivery mapping

SPRO > Extended Warehouse Management > Interfaces > ERP Integration > Delivery Processing

Check and update the delivery mapping if you are using the ERP system as an entry

For us, the ERP system is defined for the delivery types and item mapping

Production mapping

SPRO > Extended Warehouse Management > Interfaces > ERP Integration > Production

Check and update the production mapping if you are using the ERP system as an entry

Transportation mapping

SPRO > Extended Warehouse Management > Interfaces > ERP Integration > Transportation

Check and update the transportation mapping if you are using the ERP system as an entry

ERP configuration

Setup distribution model

T-code = /SPE/OL19

Run the distribution model generation for each ERP warehouse number

EWM Manual steps

Mass update BP

In the ship-to tables, the system stores the source ERP system.

Field = Responsible institution --> It should be updated by the new ERP system

Transaction MASS

Run it for all BP

Partner profile

Transaction WE20

Define the inbound and outbound Idocs for the new ERP system

You have to create also the new receiving port

Mass change BSG for products and locations

As for the BP, the BSG is stored in products (/sapapo/matmap) and location table (/sapapo/locmap)

You have to replace it by the new BSG. For this, there is a program which can be used to mass update it.

You have to implement it by the OSS note 213109

Program = Z_CHANGE_LOGQS

ERP Manual steps

Partner profile

Transaction WE20

Create the EWM partner profile in the new ERP system

Batch class and characteristics

We have the class and char numbers in EWM and ERP.

In EWM, the system stores the class and char number coming from the ERP (like the BSG for products and BP).

--> We have to

CIF the class and char

Update the class and char in EWM table with the new class and numbers of the new ERP system

Check the EWM class table

Check the char EWM table

Initial CIF of batches

CIF the class and char

Transaction CFM1 and CFM2

Update the EWM class and char table

Program /SAPAPO/CHECK_INCON_TCL_CL_CHR

/!\ Normally this program should update the class and char EWM tables. However, when we used it, it updated only the class table.

Check EWM class table

EWM class table = TCL_CLINT_IDENT

ERP class table = KLAH

KLAH-CLINT should be equal to TCL_CLINT_IDENT-CLINT

Check EWM char table

EWM char table = TCL_ATINN_IDENT

ERP class table = CABN

CABN-CLINT should be equal to TCL_ATINN_IDENT-CLINT

/!\ In our case, I updated the table TCL_ATINN_IDENT manually via SE16 in debug mode.

Initial CIF of batches

SAP recommended to run the program RIMODINI for the first CIF of batches

Conclusion

I hope this can help other consultant in case they are working on such project.

Don’t hesitate to comment this blog.

Cheers

Foued B.