System cannot reliably determine the requested text

What causes this issue?

You have selected a long text for display. Some data that came into
being <ZH>after</> this long text has been reloaded into the database
from the archive. As a result, there is a period for which data exists
in the database followed by a period for which the data has been
archived.

System Response

The program determines the long text on the basis of the data in the
archive. Under these circumstances it is not guaranteed that the texts
displayed are correct. For example, the system could display a long text
that arose from a later change because this is the next existing change
in the archive.

How to fix this error?

You can continue your processing:
If you can take organizational measures to ensure that neither the
reference target of a long text nor the next change to a long text falls
in the reloaded period.
Or
Once you have rearchived the data of the reloaded period.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.