Data Management Capabilities > Managing Part Structures > Advanced Assembly Editor Overview > Saving Changes
  
Saving Changes
All markups that appear in the Assembly Editor pane are temporary until they are explicitly written to the database using the save action. Click the save icon to persist all editing markups on all product structures.
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Any action that creates a new part such as Insert New and Copy Assembly leaves the newly created part in the database, even if the markup is cleared or the product structure edits are not saved. If these new parts are not needed you must locate and explicitly delete them.