All rebate arrangements will be extended (See long text)

What causes this issue?

You have not entered any restricting selection criteria for the
<GL:arrangement>rebate arrangements</> you wish to extend. Therefore
ALL arrangements for which extension is defined (i.e. whose
<GL:arrangement_type>arrangement type</> has an
<GL:arrangement_calendar>arrangement calendar</>) will be extended.

System Response

The system draws your attention to this fact because under certain
circumstances the unintentional extension of all rebate arrangements
can only be corrected with the expenditure of considerable time and
effort.
The function "Extend" will be performed if you respond to the following
confirmation prompt with "Yes".

How to fix this error?

Please check that you really do wish to extend ALL rebate arrangements.
Respond to the following confirmation prompt.

Error message extract from SAP system. Copyright SAP SE.