How To Fix WM434 - Module number & is not an admissible external number

SAP Error Message - Details

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 434

• Message text: Module number & is not an admissible external number

What causes this issue?

This number does not fall within the number intervals that have been
defined.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Enter an allowed number or change the number intervals (transaction
WSN1).

Error message extract from SAP system. Copyright SAP SE.