Significant Uplift for APO 
There may be a mismatch between demand planners and sales teams regarding the uplift that is generated for a specific trade event. Demand planners typically incorporate standard or regular trade events into their demand plans and sales teams plan these events by creating uplifts. This function enforces a business process that allows both key account managers (KAM) and sales teams to identify only trade events that cause a significant uplift. The volume impact of the other trade events is assumed to be already incorporated into the plan of the demand planner. This function includes transferring significant uplifts from SAP Customer Relationship Management (SAP CRM)/SAP NetWeaver Business Intelligence (SAP NetWeaver BI) to SAP Advanced Planning and Optimization (SAP APO).
You have made the settings in Customizing for Customer Relationship Management (CRM), by choosing .
Newly created trade promotions
Depending on the settings in Customizing, the Significant Uplift indicator can be either selected and disabled or deselected and enabled. When you release the trade promotion, if the Significant Uplift indicator is:
Selected, the significant uplift is transferred from SAP CRM/SAP NetWeaver BI to SAP APO
Once the transfer to SAP APO has been completed, you cannot deselect the Significant Uplift indicator.
Deselected, no significant uplift is transferred from SAP CRM/SAP NetWeaver BI to SAP APO
Previously created trade promotions
For backward compatibility reasons, all previously created trade promotions have a blank Significant Uplift indicator. All uplifts are automatically transferred from SAP CRM/SAP NetWeaver BI to SAP APO.