The balance specifies whether the gross invoice amount is equal to the total of the invoice items, the tax amounts, and the unplanned delivery costs.

If the difference is not equal to zero and you have not selected the field Calculate tax, correct the following entries as necessary:

• Gross invoice amount
• Tax amounts
• Invoice item selections
• Invoice item amounts
• Unplanned delivery costs

The traffic light icon beside the field Balance visualizes whether the invoice document can be posted.

System messages are collected in Messages. These describe the cause of errors, origin of messages, possible reasons for a balance, and how to proceed.

You can also determine the balance when you simulate the account movements.