YBP will load holdings for free every 4 months. Do not do more than once every 4 months.

An Aleph ISBN report automatically runs on the 2nd of each month with the file name ISBNs.bcprint. Find it and click the up arrow, then ok, to download it.

Find the file on your computer in the current version of Aleph directory, in Acq/files/MA150/print.

Rename the file to be ISBNs.txt.

Email the file to YBP asking them to update holdings.