Hi there, viswanathan.
We can correct the bill that was posted to the account by following these steps:
On the other hand, if you mean the items associated with the bill, we can update the account used in the item. Here's how:
To learn more about adding managing your data, you can check this article: Adding Products and Services, Customers, and Vendors to Lists.
Let me know if you have other questions. I'm here to help you out. Stay safe and healthy.