Why is purchase price (fieldId: {cost}) not updating through REST API?

AI generated answer (using internal Slack threads):

The purchase price (fieldId: {cost}) may not be updating through the REST API due to a few reasons: 1. Vendor Specific Pricing: In NetSuite, the purchase price of an item can be vendor-specific. This means that if you have multiple vendors for a single item, each vendor can have a different purchase price. When you update the purchase price on the item page, it may not reflect in the Purchase Order if the vendor associated with the Purchase Order has a different purchase price set. Therefore, you need to ensure that you are updating the purchase price under the correct vendor. 2. Purchasing/Inventory Tab: The purchase price needs to be updated under the Purchasing/Inventory tab of the item record. If you are updating the price elsewhere, it may not reflect in the Purchase Order. 3. Last Purchase Price: If the Last Purchase Price on the inventory record is set to $0, it may not update the purchase price in the Purchase Order. This could happen if a transfer order from one warehouse to another did not update the last purchase price for that location, even though the transfer cost was checked. In such cases, editing and saving the inventory record can fix the issue. 4. Sales Price vs Purchase Price: Ensure that you are updating the purchase price and not the sales price. The sales price is what you charge your customers, while the purchase price is what you pay your vendors. If you are entering the inventory item in your Purchase Order and it does not populate the amount, it could be because you are filling in the sales price instead of the purchase price. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******