Reg: Work Order Set to Do Not Execute

Hi Experts,

i want to set the WO as Do Not Execute..

When i see the WO System Status / user Status this "Do Not Execute" is not available

And same like When i see the BAPI_ALM_ORDER_MAINTAIN i couldn't any method which sets the WO as Do not execute.

So please let me know how can i achieve this pragmatically??

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Karthik.S