There are a couple of ways this typically is handled in Datacap applications. First, there is an option called Document Integrity. When checked, Fixup does a document integrity check to make sure that there is a valid document structure. This may not catch everything however, and I'm not sure it will catch Other pages as they aren't generally considered a Document Integrity violation. So the second method is that after Fixup, the batch should be routed back through Profiler, or whatever task sent it to Fixup in the first place. This task can be set to check for any pages called Other and route it back to Fixup if necessary. The nice thing about this is that it is a loop. Until the Fixup operator gets everything correctly set, it will keep going back to Fixup, so there is no possibility of it incorrectly going to Verify because of a Fixup operator error.

Additionally, I believe you can restrict the available options to a user by creating a custom dictionary named PageNames inside the setup hierarchy; this also allows for aliases.

Preventing completion itself would still rely on document integrity, which Rick covered thoroughly.

That simple way do use client side scripting based on client id get text from drop down based on that prevent user to submit

Are else If u think there is no use Other page in your application remove that from DCO Hierarchy. it's no more display in protoid page drop down selection.