It's good to have you back, j.vonstetten.
I can help you figure out why some of the SKU's not showing in part of the column.
It could be that the SKU information for the item hasn't been entered, causing it to not show in the report.
You'll want to review the data entry to ensure that SKUs are being entered consistently for all items.
I've added some resources you can check that will help you manage your inventory and keep track of them:
Keep me posted if you need further assistance managing your inventory in QuickBooks. I'll be here to provide you with the support that you need. Keep safe.
