Start of term &1 is before "Notification By" date of previous transaction

What causes this issue?

The start of the term of elementary transaction number &V1& is earlier
than the "Notification By" date of the previous exercise opportunity.
However, for the transaction form 063 (Bermuda option), the start of the
term of the n elementary transaction has to be after the "Notification
By" date of the n-1 elementary transaction.
<ZH>Note:</> The system determines the number of the elementary
transaction for a generic transaction (transaction RCA00) by assigning
numbers, starting with 1, on each level of the hierarchy tree, starting
from the top and working downwards. In the external data transfer, this
number matches the NGIDNR, the sequential number for a GID in the FGET.
Example
Number,, Tree
1,,,, Elementary transaction (top level)
2,, ,, |_ Elementary transaction (second level)
4,,,, |_Elementary transaction (third level)
5,,,, |_Elementary transaction (third level)
7,,,, |_Elementary transaction (fourth level)
3,,,, |_ Elementary transaction (second level)
6,,,, |_Elementary transaction (third level)

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?

Correct your entry.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.