Unit of measure & is not defined within the delivery or UoM group

What causes this issue?

The unit of measure defined for pricing is not available in the
delivery document.

System Response

There is a set of quantities available within the delivery. The units
of measure the system calculates to are defined in the unit of measure
group. The units of measure and quantities are enhanced with the units
of measure defined in the contracts, in the sales orders and in the
conditions. The function is called 'dynamic enhancement of the oil
quantity units of measure'. It is not possible to enhance this unit of
measure list after the goods issue has been posted.

How to fix this error?

Use one of the units of measure defined in the delivery. If you define
the unit of measure you want to use in pricing before the delivery
is created, the system will enhance the unit of measure list when you
create the delivery.

Error message extract from SAP system. Copyright SAP SE.