You can use the same Scan job for all your multi-page documents, both those with and without appendices.
Interpret can decide whether a document has appendices or not, by comparing the appearances of the first page and the last page.
By default, Interpret only interprets single item fields on the first page and the last page of the document; however, you can use Optimize to optimize fields on any page.
Entrance interprets line item fields on all the front pages.
For a multi-page document with appendices, only the first page of the document is interpreted. Interpret treats all the rest of the pages as appendix pages.
In Verify, the operator can select the actual last document page. Entrance can then interpret fields on all the document pages with the same result as described above in Multi-page documents without appendices.