Error in validity periods of addresses

What causes this issue?

You attempted to assign validity periods to addresses. Either the
valid-to date is before the valid-from date, or the validity dates
overlap.

System Response

Error message. Address validities cannot be assigned.

How to fix this error?

Check and correct the validities of the addresses.

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.