You did not specify the unit price

What causes this issue?

You did not enter a unit price. This causes the system to calculate a
<DS:DE.RECDCONDVALUE>condition amount</> of zero.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.