How To Fix WPLG009 - Call module is not maintained; see long text

SAP Error Message - Details

• Message type: E = Error

• Message class: WPLG - Interfaces for Space Management

• Message number: 009

• Message text: Call module is not maintained; see long text

What causes this issue?

A function module, in which the interface parameter is transferred and
the external program is started, is necessary to call the external
optimization program.
The interface of the function module must be a copy of
'SHELF_SPACE_MAP_OPT_ASCII_GEN'.

How to fix this error?

Maintain the name of the call module under <DS:TRAN.WSS1>Space
Management Interface</>
in the IMG activity <DS:SIMG.W_GE_0100>General Control, Retail Master
Data</>

Error message extract from SAP system. Copyright SAP SE.