When creating 1099s, QuickBooks uses the expense accounts you mapped to report 1099 transactions, Steve. I can help you get the missing vendor and transactions in your 1099 Transaction Detail Report.

To begin, please ensure the expense account used to pay your vendors is selected as a 1099 account when you prepare 1099s. Incorrect account mapping could result in missing vendor and vendor transactions in your 1099 report. Here's how you can go about choosing accounts for 1099 tracking and reports:

1. Select the Expenses tab, then the Vendors section.
2. Click on the Prepare 1099's option.
3. In Step 2 - Accounts, check the option for whichever type of 1099 you have.
4. In the drop-down menu, check off each Ledger Account that holds transactions for your 1099 vendors.

Once you have worked through adding that to the vendor, you can cancel or exit the 1099 wizard, and your report will populate. You can then reopen the 1099 Transaction Detail Report.

Finally, you can customize and save the report modifications to save time on future management.

With these adjustments, you can fully utilize the report and review all your 1099 vendor transactions. Should you require additional support, please let us know in the comments. Our team is readily available to assist you whenever necessary.