Conflict between package and structure namespace

What causes this issue?

The development class for IDoc types of Intermediate Document segments
and the name range for these IDoc types are incompatible.

System Response

It is not possible to work with these settings.

How to fix this error?

Enter the following parameters in the EDI administration table:
Parameter,,Parameter value
IDOCEDIT,,USR
SEGDVCLASS,,<Development class>
The development class to which the IDoc types are to be assigned must
be identified according to the customer name range and begin with Z or
Y.
IF &DEVICE&='SCREEN'
<DS:TRAN.WE46>Execute function</>
ENDIF

Error message extract from SAP system. Copyright SAP SE.