No date for ID & exists for the year &

What causes this issue?

No entry exists for the selected source date ID in table T549S for the
modifiers and time interval entered in the selection screen.

System Response

It is not possible to generate data for the target date ID.

How to fix this error?

Please check your entries.
You can use this report to generate the entries for the chosen date ID.
For more information on the report, please see the report
documentation.

Error message extract from SAP system. Copyright SAP SE.