Multistore: This field is store-specific.
Use this field on the Codes tab of Inventory Maintenance to specify whether the system keeps an extra 13 months of sales history (periods 14 through 26) for this item.
Y = Keep extra sales history for this item.
N = Do not keep extra sales history for this item.
You can view this sales history in Function ISH (Item Sales History). The default comes from the Keep Expanded Sales History? field in Options Configuration (or Function MIC).