If AutoCAD Map 3D toolset is set to check in your changes automatically, the source file updates while you edit. Automatic update can result in inadvertent changes to the data store. The safest way to edit geospatial data is to turn off automatic update feature before you edit a feature. Once you make your changes, check the feature in to update the data store with your changes and make the feature available to others again.
When you edit a feature, that feature is automatically checked out and locked for editing by anyone else (if the data format supports such locking). Other people can view the feature source, but they cannot change it until you check it back in.
To edit an object
The parcel is checked out automatically and displays grips.
When Automatic Update is on, it is a darker color than the ribbon background.
To continue this tutorial, go to Exercise 3: Update information for the edited feature.