Article ID: 2729414 - View products that this article applies to.
Co-authoring isn't fully supported by some diagram templates in Microsoft Visio Pro for Office 365.
Co-authoring is a feature that lets multiple users edit the same document at the same time without interfering with each other's changes. Note that the following templates in Visio Pro for Office 365 don't fully support co-authoring:
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Article ID: 2729414 - Last Review: May 31, 2014 - Revision: 6.0