Conversion group & not defined in Customizing

Message type: E = Error

Message class: O3 - IS-Oil: HPM messages (goods movements, QCI, deliveries)

Message number: 072

Message text: Conversion group & not defined in Customizing



What causes this issue?

The conversion group ID, which has been transferred to the Quantity
Conversion Interface (QCI), does not exist in Customizing table OIB01.


How to fix this error?

Enter a valid conversion group that has already been defined for the
material in the material master, or maintain a new conversion group
(Transaction O588).

Error message extract from SAP system. Copyright SAP SE.