For locking of work items against execution, use the function module SWW_WI_DISABLE.
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For unlocking of work items against execution, use the function module SWW_WI_ENABLE.
To read the container elements of a particular work item, use the function module SWW_WI_CONTAINER_READ.
We can change the attributes of the deadline monitoring for a particular work item by using the function module SWW_WI_DEADLINES_CHANGE.