&1 cannot be used as an auxiliary packaging material

What causes this issue?

You entered a packaging material that has type "means of transport" or
"transport equipment". These types cannot be used as auxilary packaging
materials.

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?

Change the <DS:SIMG.SIMG_CFMENUOLSDVHAR>packaging material type</> of
the packaging material you are using. All packaging materials that have
packaging material type "auxilary packaging material" or "packaging
material" are valid as auxilary packaging materials.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.