No transaction data posted since last settlement

What causes this issue?

You set the "Check ?Transaction Data" indicator on the initial screen
in Settlement. The system checks whether transaction data were posted
to the object you entered, since the last settlement.
No transaction data were posted since the last settlement for the
sender that you entered.

How to fix this error?

You can find further information in the initial screen in Settlement,
under F1 Help on the "Check Transaction Data" indicator.

Error message extract from SAP system. Copyright SAP SE.