Imagine a scenario when User A opens a word (.docx) document from a document library (Ent SharePoint 2013). Office Web Apps server then generates the document via the browser. User A then decides he/she wants to "Edit in Word" using their client application (Office 2016). MS Word pops up and everything is fine. User A can now begin editing the document.
Now, along comes User B. He/She decides they need to edit that same document. Clicks to open the document from the document library and proceeds to try and "Edit in Word" on their own client application as well. Then gets a message:
Now, I am aware of the 10 min lockout that Windows SharePoint Services puts on the document:
"When a document is opened by a client program, Windows SharePoint Services puts a write lock on the document on the server. The write lock times out after 10 minutes. Users cannot modify the document during the time when the document is locked."
But, I need confirmation. Does this mean that there are no Co-authoring capabilities when a document within SharePoint is opened to the client application? Co-authoring works perfectly fine in when both User A and User B utilize Office Web Apps, but why not in the client application?
Normally, I would assume the statement above clearly states that "When a document is opened by a client program, Windows SharePoint Services puts a write lock on the document on the server." is enough to prove this to the users. But, some of my users are adamant co-authoring within the client application from SharePoint did work at one point in time.
Please help confirm or deny this. Thanks!