You have set the Contract Balance Interest Calculation flag for the insurance object category, which you are using for insurance objects with balance interest calculation:  Collections/Disbursements Basic Functions Number Ranges and Insurance Object Categories Configure IO Categories and Assign Number Ranges .Insurance object categories like this must be assigned to the insurance object category Deposit Contract (50).

You have set the following flags for the contract account category, which you are using for balance interest calculation: Only One Contract Permitted , Only One Business Partner Permitted and Contains Deposit Contracts .  Collections/Disbursements Basic Functions Contract Accounts Number Ranges and Contract Account Categories Define Contract Account Categories and Assign Number Ranges (FS-CD).

You have defined interest keys and interest calculation rules. For balance interest calculation, you must take particular care to define whether interest calculation is to take place in advance and whether the interest rate is fixed:  Collections/Disbursements Business Transactions Interest Calculation Item Interest Calculation Define Interest Keys and Define Interest Calculation Rules .

You have defined a document type for the interest document (posting area 1082):  Collections/Disbursements Business Transactions Interest Calculation Balance Interest Calculation Define Specifications for Balance Interest Calculation .

You have assigned main and subtransactions to the interest lines for the document (posting area V070):  Collections/Disbursements Business Transactions Interest Calculation Balance Interest Calculation Assign Main and Subtransactions to Interest Keys .

You have assigned main and subtransactions to the withholding tax lines for the document (posting area 1086):  Collections/Disbursements Business Transactions Interest Calculation Balance Interest Calculation Assign Main and Subtransactions to Withholding Tax Codes .

You have defined the document type and clearing reason for reversing an interest document (posting area 1050):  Collections/Disbursements Business Transactions Reversal Define Default Values for Reversal.

You have defined clearing reasons for items that are not relevant for interest calculation:  Collections/Disbursements Business Transactions Item Interest Calculation Define Clearing Reasons for Which Interest Is not Calculated .

You have assigned the insurance object to an insurance object category that is marked for balance interest calculation.

The contract account is assigned to a contract account category that can contain deposit contracts.

The contract account is only assigned to one insurance object and one business partner.

You have selected open item accounting as account management for the contract account.

The contract account contains clearing restriction ‘D’.

You have defined a currency for the account. It is only possible to post to the contract account using this currency.

You have defined an interest key for the insurance objects (or contract account) for which interest is to be calculated.

If you want to calculate interest on a periodic basis, you have define the base period and, if required, the base days for interest calculation.

If you want to post withholding tax, fill the flag for withholding tax for outgoing payments on the contract account.

The Process Insurance Objects with Balance Interest Calculation transaction

The Balance Interest Calculation Run mass activity

The Currency Change mass activity

The Create Balance Interest Letter mass activity

The balance interest calculation history

They are cleared and the clearing reason has been marked in Customizing as not relevant for interest calculation.

You list main and subtransactions that are marked as not for interest calculation, using an additional receivable rule.

Your clearing document has the origin “Reversal”, “Resetting Clearing” or “Returns”.

They have been posted statistically.

You do not have clearing restriction “D”.