Items we own are in WorldCat but aren't displaying our holding

Issue: An item exists in the WorldCat database, but it doesn't display our holding of it, even though in Novanet it shows up.

Cause A: Often, this happens because our Aleph record doesn't have the corresponding OCLC number in the 035 field.
Status A: Elaine Christensen is diligently trying to add these. If you encounter such a case, please send the title to her!

Cause B: We have found several instances where there are several Novanet copies of an item, but only one shows up in WorldCat Local, even though all the holdings are attached to the same bib record.
Status B: I have reported this to our OCLC contact, and am awaiting a solution.