Sequence number &2 will be replaced by default value &3

What causes this issue?

You entered &V2& as the sequence number within method &V1&. This number
is already used by a different entry of cons chart of accounts &V4&.
The sequence number will be replaced by the default value &V3&.

System Response

Writing sequence number &V3& in method &V1&.

How to fix this error?

If you like, you can replace the default value with your own number.

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.