To integrate with Informed.co, please go to your Amazon Marketplace Settings in Sku Grid and set Auto Update Amazon Stock = Yes and Auto Update Amazon Price = No.
Under Calculating Amazon's Selling Price, delete the long written formula there. If you only want to pass along the supplier's price and shipping costs (with no additional markup) to Informed, then please type (vendor_price+vendor_shipping) as the formula.
Then under Informed.co Integration, select Yes, to export In Stock Items to Informed.
Then select, what you want to use as the SKU on the csv file. You will want to be sure to set this to Amazon's SKU and make sure you have your seller sku entered for each item in Sku Grid.
You will see a link next to CSV Link to enter in Informed.co appear. Copy that link. Save Settings.
Then go into your Informed account and go to Uploads.
Paste in the URL and select 1 hour as the frequency as and Save.
Go to your grid and make sure that you don't have override formulas on your items by doing Batch Options --> Edit Items --> Remove Per Item Formulas on all items.
Give it some time and Sku Grid will then pass on your supplier costs for your in stock items to Informed.