Quantity Conversion Interface: import or export table & not defined

What causes this issue?

A table name has been entered in Table OIB04 as either the export
parameter table name or import parameter table name. But those tables do
not exist in the ABAP Data Dictionary (DDIC).

System Response

The tables are used to send import and export parameters to the API
C-codes or to the user-defined conversion routines, and must exist as
structures in the Data Dictionary.

How to fix this error?

Check the entries in Table OIB04, or create the required DDIC objects
(Transaction O588) .

Error message extract from SAP system. Copyright SAP SE.