An Accountant's Copy prevents you from making any changes that may conflict with your client's work. Some fields may be disabled in an Accountant's Copy. In other areas, you may see fields with a highlighted background.
Highlighted background. Information you enter in fields with a highlighted background will be included in changes you send back to your client.
Without highlighted background. For fields without the highlighted background, you can change the information in the field if it helps you with your work, but that information will not be included in the changes you send back to your client.
What an accountant can do in Accountant's Copy
Send your changes to your client