You have not entered a future price

What causes this issue?

You have entered a valid-from date for the future valuation price of
the material. However, you have not entered a future price.

System Response

The system assumes that the future price is zero.

How to fix this error?

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

Procedure for System Administrators

If the price control for the material is set to <LS>S</> (standard
price), this message appears in one of the following ways, depending on
how message M3 132 ("With price control S, enter a standard price") is
configured:
It appears as an error if message M3 132 is configured as an error
message, that is, if a standard price of zero is not allowed.
It appears as a warning if message M3 132 is configured in another way.
In Customizing for the <LS>Material Master</>, you can check how
message M3 132 is configured in the activity
<DS:SIMG.SIMG_CFMENUOLMSOMT4>Define attributes of system messages</>.

Error message extract from SAP system. Copyright SAP SE.