Means-of-transport type & will be replaced by &

What causes this issue?

The <DS:DE.VHART>shipping material type</> that was found in the
material master for the <DS:DE.TRMTYP>means of transport</> is
different from the <DS:DE.TRATY>means-of-transport type</> entered.

System Response

The means-of-transport type was overwritten by the shipping material
type in the material master. This only happens if the shipping material
type has a <DS:DE.VELTP>shipping unit category/> relevant for the
shipment</>.

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.