Realistic release date: &

What causes this issue?

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

System Response

How to fix this error?

How the system determines the date on which a purchase order is to be
issued on the basis of the requisition is described in the
documentation of the data element <DS:DE.FRGDT>Release date</>.

Error message extract from SAP system. Copyright SAP SE.