Issue:
When attempting to save a drawing in AutoCAD or Civil 3D, the process fails and the following dialog pops up:
AutoCAD Message
Unable to save to drawing C:\Users\username\...\filename.dwg as it is being accessed by another session.
Drawing saved to C:\Users\username\...\savexxxxxxxx.tmp
Solution:
The solutions to this issue are different depending on the environment. Follow the article that applies to your scenario.
Drawing stored in BIM 360 and opened through Desktop Connector
Drawing stored in the network or a cloud storage solution
Drawing stored locally
Products:
AutoCAD Products;