Welcome to the QuickBooks Community, @whs37. I'm here to help with your building assembly concern.
In QuickBooks Desktop (QBDT), the program will depend on the items overall quantity on hand when creating an assembly. You have to ensure that the parts you're using in building assembly are not negative to avoid issues when building assembly.
Then, you have two options in fixing the Not enough components on hand message. Please refer to the bullets below:
- The first option is to select Cancel and then decrease the number in the Quantity to Build field.
- Another option is to click the Mark Pending button for now. You can go back to this build transaction and select Remove Pending Status once you have enough items in stock.
For your reference about the process, please see this article: Combine your inventory items to build finished goods. This page also includes links that will give you more info about inventories and guidance on how to set up your product's bill of materials.
In case you have to adjust the quantity or total value of your product in QBDT to keep your inventory status accurate, you can visit this link: Adjust your inventory quantity or value in QuickBooks Desktop.
Feel free to post again here if you have any other questions about building assembly in QBDT. I'm always around to help. Take care.