Hi there, Roumbs.

Welcome to the QuickBooks Community. Let me share details about transaction ID and how it applies in a report in QuickBooks Online. Then, ensure you can send feedback so your suggestion is forwarded to the Product Development Team.

As mentioned above, QuickBooks Online will automatically assign a transaction number to your sales transactions. Then, you have the option to manually enter the Ref no. or No. field for expenses and other vendor-related entries. This way, they'll reflect when you pull up and customize the Transaction Detail by Account report. 

However, the option to provide or add Transaction ID for each line item on General Ledger is still currently unavailable. Please know that having standard or access restrictions isn't the reason why you're unable to see the transaction ID. Also, we’re unable to provide you with a specific time frame as to when this feature will roll out. Please know that having standard access isn't the reason why you're unable to see the transaction ID. 

For now, I suggest going to the Gear icon in QuickBooks Online. From there, you're able to choose Feedback to submit a request about adding Transaction ID for each line item on the General Ledger report. Any recommendations are sent to our engineer for consideration in future updates.

Lastly, you may refer to this article to view details on how you can customize reports to focus on the details that you want to see and give you tons of great info about your business: Customize reports in QuickBooks Online.

Please let me know if you have additional questions about how transaction ID works in QuickBooks. I'll get back to you soon, Roumbs. Take care and more power to your business!