Inv. program has a different program type

What causes this issue?

The program type &V2& of the reference capital investment program
differs from the program type &V1& that you entered. It therefore
does not make sense to use it as a reference.

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?

Please enter an appropriate capital investment program as a reference.
By means of the entry help, you can use a matchcode to determine
capital investment programs with the program type &V1&.

Error message extract from SAP system. Copyright SAP SE.