I have prepare a invoice on quickbook but it was not saved and message received "Please select a transaction date that comes after the date you started tracking

I want to make sure you'll be able to save your invoice in QuickBooks Online (QBO), kamarchand.

This error message happens when the date of your invoice happens before you start tracking your item. An example is if your item's start date is 08/14/2021, the invoice date should be 08/14/2021 onwards. If you use 08/12/2021 as the invoice date, the system won't allow you to save the transaction.

To isolate the issue, you can either update the transaction's date or recreate a new item with the desired As of date.

I've added these screenshots for your visual references.

Here's an article you can read more about managing your invoices: Create invoices in QuickBooks Online.

When you're ready to record the payment, you can follow the steps in this link: Record invoice payments in QuickBooks Online.

Let me know how else I can help you with your invoices and other sales transactions. I'm more than happy to help. Keep safe!