Let's make sure to fix the Sales Order fulfillment worksheet error that you're getting, Nathan at Kasten.
Thank you for providing a screenshot! The Sales Order Fulfillment Worksheet helps you manage and fulfill your sales order by providing you with a single place to gain insight and access to all aspects of the process with better and easier workflow.
We can perform the Verify and Rebuild tool to identify the most commonly known data issues and resolves them after we're able to determine the cause.
To verify data:
To rebuild data:
Moreover, you may be experiencing other errors when using QuickBooks Desktop, you can check out some of the solutions found in this article: Fix Data Damage On Your QuickBooks Desktop Company File.
Let me know if you have any other concerns with the fulfillment worksheet or if you have additional questions about QuickBooks. I'll always be right here to help anytime.