AI generated answer (using internal Slack threads):

Based on the conversations, when you have a variance in the Cost of Goods Sold (COGS) due to Work Order (WO) close Work in Progress (WIP) variances, you would typically adjust the COGS variance account. This is the account that is usually selected at the top of the inventory adjustment. In the case where inventory adjustments have been performed to fix the average cost, and there is still a discrepancy, it seems that the COGS account is still affected by the original cost, not the new average cost. If there is a variance between the Purchase Order/Inventory Receipt balance, NetSuite has a procedure to deal with this. The best way is to use the setting "match bill to receipt" on all items. Then the item receipt lines are linked to the vendor bill lines. There is an action called "Post vendor bill variances" which lets NetSuite do the booking for you, based on the variance accounts set on your item. If you don't go with that, you could book it as a cost/negative cost to a COGS account with 2600 as counter-account together with a stock revaluation (if you haven't sold them yet). If there is a scenario where the period is closed and you get a bill from a vendor that is higher than what was recorded in the system, you can adjust the SKU average cost using an inventory adjustment. If there is stock on-hand, you can do a partial adjustment and the difference goes to COGS. If the stock is sold out, it goes to COGS using a journal. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******