Account &1 is not defined in chart of accounts &2

What causes this issue?

The flow type or reference flow type refers to account &V1& using the
account symbol. This account is not defined in chart of accounts &v2&.

System Response

How to fix this error?

Change the <DS:SIMG.REFXV_TIVEXFIREPSYMB>account determination</> so
that the account symbol refers to a valid account.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.