Enterprise Control Limit Synchronization Strategy

SPC Control Limits sync up to the parent and each server evaluates limits based on the most recent change it has received.

• When you set a control limit from the site (for either the whole definition or the product code) it syncs to the enterprise and is the control limit for that sample and all going forward (until changed).
  
  
• If you change the control limit from the enterprise, that value is not synced down to the site, and this value is the control limit on all samples for the enterprise until changed and the control limit that was previously set on the site continues being the control limit there.
  
  
• If you change the control limit from the site again, it override the one set on the enterprise going forward (unless once again changed on the enterprise).