Characteristic &1 uses external tables for value area

What causes this issue?

The IPC does not support the function 'external value table'.

System Response

The characteristic is copied into the knowledge base without the
external value table.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.