I have an issue concerning button links to different documents from within an InDesign Book in my EPUB.
I first create a Button for each chapter.
I have each button set to: Go To Destination
Next, I select the correct document and created a Bookmark for that page.
This works fine for any local links but any link that is in a different document doesn't work the error message reads as follows:
External Anchor not found:
External Anchor "Chapter 1 - Culture of Safety" at "/Users/cewdev-iMac/Documents/Rocky's Files/2016/P108 Safety E-Book/EPUB/Health and Safety For EPUB/1-2_h.indd" is missing
I know both DPS and Twixl both use specially formatted hyperlinks (navto://1-2 and tp-pagelink://1-2) to achieve communication between documents within content apps but those techniques are not working for my EPUB.
TOC Document with Buttons set to Go to Destination > 1-2_h > Chapter 1 - Culture of Safety
Destination Document with Bookmark, "Chapter 1 - Culture of Safety"
The Integrated TOC in iBooks functions well using the above technique (only the custom InDesign TOC is not functioning).
Any assistance you could offer would be great. I am pretty sure this is easy to do, I just can't seem to locate the info I need.