&1: no adjustment since validity of condition unsuitable

What causes this issue?

Possible reasons that the condition was not considered by the adjusment
could be:
The <DS:DE.REAJADJMVALIDFROM>valid-from</> date of the adjustment
parameter is after the absolute <DS:DE.RECDVALIDTO>valid-to</> date of
the condition. If there is no entry for the actual
<DS:DE.RECDVALIDTO>valid-to</> date of the condition, then the system
instead uses the object validity of the condition object or the validity
of the contract or rental object that contains the condition.
The <DS:DE.REAJADJMVALIDFROM>valid-from</> date of the adjustment
parameter is before the date of the <DS:DE.REAJNEXTADJMDATE>next
possible adjustment</> that was calculated using the adjustment
frequency.

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.