Scheduled Script Governance
Each scheduled script run can use up to 10,000 usage units. For more info, see SuiteScript Governance and Limits.
SuiteScript 2.x scheduled scripts don't let you set recovery points or yield. There's no direct replacement for nlapiYieldScript() or nlapiSetRecoverPoint(). If you need to process lots of records, switch to the SuiteScript 2.x Map/Reduce Script Type, which supports yielding and works much like scheduled scripts.