In general, based on my previous tests, if there is trivial syntax error (e.g. unbalanced bracket, non matching opening/closing keyword, etc.),  the error message  "The server could not complete your request. An internal error occurred. (Click here to close)" will be displayed.

Regarding the actual format/syntax to be used, I have to admit I haven't been able to find out yet.  I've tried different formats - JSON, XML, dictionary, etc., which have been described in different related documents, including Google's document on Google Chrome app configuration.  However, the set bookmarks do not seem to be present on the Chrome browser app on my test Android Enterprise device, though changing other app-configuration parameters in the same rule could get required function/restriction deployed to the device easily without any problem.  Need some more time to check the right format to use for this "managedbookmarks" item. 

I was able to get the bookmarks working using the Android/Linux example under ManagedBookmarks here. I'm still working on getting the toplevel_name to work. I get the same error message when I put that in for some reason.

Hi David.

Could you share your findings? What was the exact line you ended up using?

Did you type it in the URI section or on the "enable application configuration" and then under bookmarks?

(EDIT)

I figured it out.

Under enable App configuration -> Managed Bookmarks I put in like this

[{"url": "chromium.org", "name": "Chromium"}, {"url": "dev.chromium.org", "name": "Chromium Developers"}]

Hi Kenneth,

That is the line I used to assign bookmarks through the enable app configuration section of Chrome. In the end, what got it working for our instance was upgrading from MobiControl v 13.4 to 14.2. I'm not sure if there is a bug in v13.4, but after the upgrade I could add as many bookmarks as I wanted without getting the error message.