Did BN give it to you? If so, it might be an internal ISBN like Amazon does, so it won't workelsewhere. If it is one you purchased, it may take a few days for it align to the ebook.
Nope, it's a real ISBN and it's been registered for a long time... I think pubit maybe just has some kind of bug? Anybody else experience this or have had it work? Thanks!
We had the same problem today. When trying to provide a valid, Bowker-purchased 13-digit ISBN, which we entered with no hyphens, we got an error message on multiple attempts to get it validated/accepted:
"ISBN is invalid. Please enter a valid 13-digit ISBN."
I just wrote them at the FAQ-provided email, which is pubit at bn dot com.