Recursivity with special procurement of material & in plant &

What causes this issue?

There is recursivity for material &v1& in plant &v2& which is to be
specially procured from plant &v3&. This was found via the special
procurement key in the first MRP view of the material master record or
in the costing view of the material master record.

System Response

material &V1& in plant &V2& cannot be costed.

How to fix this error?

Check the special procurement key in the MRP 1 and costing 1 views for
material &V1&.

Error message extract from SAP system. Copyright SAP SE.