Substitution for Event 60 (Reconcil. ledger: Acct determ.) obsolete

What causes this issue?

Substitutions for Event 60 (Reconciliation ledger: Acct determination.)
are not called anymore.

System Response

In S/4HANA Accounting and Controlling are based on the same table ACDOCA
(instead of separate tables like COEP and FAGLFLEXA/BSEG). It is
therefore not possible to change the G/L accounts in FI only: The
accounts in Controlling and Accounting documents are per definition
identical.
The possibility to use a substitution for changing the G/L accounts for
a CO posting is obsolete. The substitution for event 60 is not called
anymore.

How to fix this error?

Use transaction OKC9 to delete substitutions for event 60
(Reconciliation ledger: Acct determination.

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.