Start date = end date of the resubmission, no periodic resubmission

What causes this issue?

You tried to create a periodic resubmission where the start date was
identical to the end date. However, there must be a difference of at
least one day between the start and end date.

System Response

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

How to fix this error?

Enter a new end date, bearing in mind the interval selected (in days,
weeks, months, or years).

Error message extract from SAP system. Copyright SAP SE.