What does Unassociated and Outlier mean ?

Summary

Outlier and Unassociated

Content

Hello,

When we run the plan with option 'forecast methods and Decomposition options checked..we see  data populated in the tables 'Shipments Forecast Demand and Outliers Table' 

When we have Outliers listed --How do we use this information--do we need to investigate and adjust the shipment history --adjust and rerun to improve the forecast?

What does 'Unassociated' in Forecast Methods mean ?

 

Please see the attachment.

 

Sincerely