<>7
Indicates that an item of equal or greater value and performance may be substituted for the item specified.
<>ZZZ
A code reserved for special trading partner requirements when pre-defined codes do not exist.
<>1
Notice to supplier to fill order exactly as specified.
<>4
Indicates that the cloth bound edition of a book is acceptable if the edition ordered is unavailable.
<>2
Indicates that substitute bindings are acceptable if the edition of a book originally ordered is unavailable.
<>5
Indicates that a library binding of a book is acceptable if the edition ordered is unavailable.
<>3
Indicates that a paper back edition of a book is acceptable if the edition ordered is unavailable.
<>6
Indicates that an item of the same value and performance may be substituted for the item specified.