Cannot change preferred Stock level

AI generated answer (using internal Slack threads):

In NetSuite, the Preferred Stock Level (PSL) and Safety Stock Level are two different inventory management parameters. The Safety Stock Level is the minimum amount of an item you always want to have in stock, regardless of the demand. This is a buffer to ensure that you don't run out of stock in case of unexpected demand or supply chain disruptions. On the other hand, the Preferred Stock Level is the ideal quantity of an item you want to have in stock to fulfill your daily demand, excluding the safety stock. This is calculated based on your average sales and the lead time to replenish the stock. For example, if you always want to have 50 units of an item in your safety stock, and it takes 10 days to receive the item from a Purchase Order (PO), and you sell 1 unit per day, your reorder point might be 60 (50 safety stock + 10 units for the lead time), but your preferred stock level would be 110 (50 safety stock + 60 units to cover the sales during the lead time). If you're having trouble changing the Preferred Stock Level or Reorder Point on an item, it could be due to the 'Auto Calculate Reorder Point' and 'Auto Calculate Preferred Stock Level' settings. If these are checked, NetSuite will automatically calculate these values based on your sales history and other factors. You may need to uncheck these settings to manually set the Preferred Stock Level and Reorder Point. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******