C1
If field 12 contains the value '942', at least one field 34F must be present in the same repetitive sequence (Error code(s): C22).
C2
Within each repetitive sequence, when only one field 34F is present, the second subfield must not be used. When both fields 34F are present, subfield 2 of the first 34F must contain the value 'D', and subfield 2 of the second 34F must contain the value 'C' (Error code(s): C23).
C3
The currency code must be the same for each occurrence of the indicated fields within each repetitive sequence (Error code(s): C40).