3345014 - PO can be / cannot be created for material without purchasing view in material master

A material is created with a material type that does not have purchasing view in the material master (e.g. FERT). Nevertheless, the system allows to create purchase order (PO) for this material and follow-on documents as well, 

Why is  system message "Material & not maintained by Purchasing" (ME046) is not raised at PO creation  or why is this error message coming up while creating PO.

SAP S/4HANA Cloud Public Edition

In SSCUI 103539 "Define Attributes of Material Types", the purchasing view is not activated for the material type. The message ME 046 is only raised if the Purchasing view is active for the material type in this SSCUI and the view is not maintained in the material master for the material.

.Activate the purchasing view in SSCUI 103539 "Define Attributes of Material Types" and if no Purchasing view maintain in the material master, error shall appear.

 or
Don't activate the purchasing view in this SSCUI, then error will not appear , However a possible workaround to block PO creation with system message "Material & mainly procured internally (please check your input)" (ME 092) - the issuing of this message depends on the setting of the field "Procurement Type" on the MRP 2 view of the material master.

2829433 - Error message ME046 - "Material & not maintained by Purchasing" appear when creating a Purchase Order - SAP S/4HANA Cloud Public Edition - SAP for Me

KBA , MM-PUR-PO , Purchase Orders , How To