Do not enter a rate type

What causes this issue?

You have entered the rate type &v2& for the operand &v1&. However, you
may not specify a rate type for the operand &v1&.

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?

If you want to assign a rate type to the operand &v1&, you must
explicitly specify this in the <DS:DE.TAZUORD>definition</> of the
operand (see Transaction EA51).

Error message extract from SAP system. Copyright SAP SE.