When you update a parent book, the child book files are not automatically updated. To update the numbering and cross-reference information in child book files, make sure all child book files are open before you update the parent book. Updates to the child book files are not saved and you are prompted to save changes when you close them.
Similarly, if an XML file is already open, FrameMaker updates the numbering but does not save the changes. Therefore, when you close the XML file you may be prompted to save changes.
Generated files, such as table of contents or index files from the child book are not included in the published output. This is because the generated files in the parent book contain information for the child book files as well. Also run book-wide operations separately for each book.