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NetSuite Professionals

is it possible to halt an instance of a scheduled script that is running in progress?

delete the deployment, if that does not work, delete the script record

or you can edit the script file and put a bug, then when the script reschedules it should fail

you just need to uncheck the field named "DEPLOYED" on deployment record. It won't reschedule again. you have to wait until the execution cycle is completed or stopped due to an error if it is not handled properly.