Activity lock modification. Identifier of the activity that is locked. Type of activity that is locked. Valid values are FULFILLMENT_ORDER, FULFILLMENT_ORDER_DELIVERY, FULFILLMENT_ORDER_PICK, FULFILLMENT_ORDER_REVERSE_PICK, INVENTORY_ADJUSTMENT, INVENTORY_ADJUSTMENT_REASON, ITEM_BASKET, PRODUCT_GROUP, PRODUCT_GROUP_SCHEDULE, REPLENISHMENT_GAP, SHELF_ADJUSTMENT, SHELF_REPLENISHMENT, STOCK_COUNT_CHILD, TRANSFER, TRANSFER_DELIVERY_CARTON, TRANSFER_SHIPMENT_CARTON, VENDOR_RETURN, VENDOR_DELIVERY_CARTON, VENDOR_SHIPMENT_CARTON. This type can hold an enumerated string of max length of 30 characters. This type can hold a string of max length of 128 characters.