How To Fix T1358 - Not possible to use both fix and var. interest in first condition

SAP Error Message - Details

• Message type: E = Error

• Message class: T1 - Financial instruments

• Message number: 358

• Message text: Not possible to use both fix and var. interest in first condition

What causes this issue?

It is not possible to use both fields <LS>Reference Interest Rate</> and
<LS>Percentage Rate</> for the first interest conditions of a deal.

System Response

The fixed rate is deleted from the first condition.

How to fix this error?

If you want to use both fixed and variable interest rates in the first
interest condition of a deal, use a formula.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.