You can configure segment auto-locking by enabling one or more TM properties. By default, these properties are set to false. When one of the properties is set to true, then saving a locked segment to translation memory causes subsequent TM ICE matches resulting from this segment to be locked as well. So if you leverage the TM and an ICE match results from a locked segment, the segment to which the TM match was applied is also locked.
The properties that enable automatic locking are as follows:
enable_auto_segment_lock_on_locked_spice_match= false|true
enable_auto_segment_lock_on_locked_ice_match= false|true
enable_auto_segment_lock_on_locked_ice_asset_match= false|true
For more information about locking behavior, read about Translation Entry Locking and Segment Auto-Locking in the WorldServer Translation Memory Administration Guide.