There is a great video on Channel 9 about Access Web Apps, and how to link to them on the desktop ( see https://channel9.msdn.com/events/MVP-Virtual-Conference/MVP-Virtual-Conference-Americas-2015/CONS2-Using-Access-and-SharePoint-for-Travel-Expenses-and-Pulling-up-Maps). However, they never mentioned linking to Visio, so I thought I would correct that omission. I had previously tried to use Link Data to Shapes with an Access Web database, but failed, however watching this video encouraged me to try again!
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