Welcome to the forum.
Unfortunately, you have posted to Forum Comments, which deals with the actual Adobe Forums, themselves.
If you can let us know which Adobe program you are using (my guess would be InDesign), a MOD can Move your post to the appropriate product forum, where you will likely get quick answers.
Also, your link and any e-mail subscriptions will follow perfectly.
Good luck, and let us know the program you are using.
I know for a fact you can do more than 99 pages in indesign. I helped make a book with about 116 pages. I didnt set it up but I saw the file and know it worked. Maybe the limit is 99 pages for 1 file. Maybe you need to use book or library. Maybe 99 pages is limit to 1 section size. Book allows you to stich multiple sections together sort of like linked placed items.