Troubleshooting - How to add discount value to SalesReceiptItem

Problem Description:

I want to add a $50 discount on a sales receipt item.

I have been using the "discount" field in my SQL statement. I keep getting an error: ERROR [42S00] [QODBCPOS] Error: 20004 - The receipt is not balanced. The indefinite amount is 50.00.

How exactly do I add a discount value to one SalesReceiptItem? 

Solution:

There might be an issue with the Amount/Balance Amount and the payment amount(TenderAmount).

I think you are not removing the discounted amount from the TenderAmount.

Please check the amount. There might be a difference of 50.

Please refer to The receipt. It is not balanced. The indefinite amount is for more details.