When listing an item through InventoryLab, there are required fields that you must fill out:
Total Quantity: Enter the quantity you will be sending to Amazon. For a Merchant Fulfilled batch, this is the amount you currently have available to sell.
Allowed Conditions: You must select the correct option from the allowed conditions.
MSKU: An MSKU may populate here based on your MSKU customization settings, but you can also enter your own. If you replenish an item, it will be the existing MSKU.
Label Owner (FBA only): You can select Seller, Amazon, or None.
Prep Owner (FBA only): Choose Seller, Amazon, or None. If you get a "Prep Information Needed" error despite choosing one of these fields, see How to Add a Prep Type to an MSKU in Seller Central.
Merchant Shipping Group (MFN only): Select one of your MFN Shipping Templates.
Expiration Date: This is only required for certain items. If an item requires an expiration date, you will see an expiration date Product Alert and a message stating that this is required. If you're unsure if an item needs one, please visit the help pages in Seller Support regarding expiration dates.
List Price: Set the price at which you will sell your item.
Once these fields are filled out, you can click Add to Batch to move the item into your batch.