How To Fix FINS_IC_CUST018 - Rounding diff acct &1 requires posting with taxes; CoCode &2, ChtAcct &3

FINS_IC_CUST018 - Overview

• Message type: E = Error

• Message class: FINS_IC_CUST - Manage Currencies: Customizing

• Message number: 018

• Message text: Rounding diff acct &1 requires posting with taxes; CoCode &2, ChtAcct &3

What causes this issue?

To post rounding differences, you must define special accounts for these
rounding differences in the project configuration.
A rounding difference account, such as &V1& that is used for company
code &V2& and chart of accounts &V3&, must fulfill the following
requirements:
The GL account type must be <LS>Nonoperating Expense or Income</>
(Attribute <AB>SKA1-GLACCOUNT_TYPE = 'N'</>).
The account currency must be equal to the local currency of the company
code
(Attribute <AB>SKB1-WAERS = T001-WAERS</>)
Posting to a rounding difference account with taxes isn't mandatory
(Attribute <AB>SKB1-XMWNO </>is initial).
A rounding difference account is not open-item-managed
(Attribute <AB>SKB1-XOPVW </>is initial).
Rounding difference account must not be defined as to <LS>Post
automatically only</>
(Attribute <AB>SKB1-XINTB </>is initial).
A rounding difference account must not be defined as a reconciliation
account
(Attribute <AB>SKB1-MITKZ </>is empty).
For rounding difference accounts, the balances must be managed in the
local currency only
(Attribute <AB>SKB1-XSALH = 'X'</>)

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?

In the project configuration, ensure that the accounts used for rounding
differences comply with the requirements described above.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

FINS_IC_CUST018 - Details

• The SAP error message FINS_IC_CUST018 indicates that there is a rounding difference in the intercompany accounting process that requires posting with taxes. This error typically arises in the context of intercompany transactions where the rounding differences need to be handled appropriately, especially when taxes are involved.
  
  Cause:
  
  Rounding Differences: The error is triggered when there is a discrepancy in the amounts due to rounding differences in currency conversions or calculations.
  Tax Implications: The system requires that any rounding differences be posted in a way that accounts for taxes, which may not be set up correctly in the configuration.
  
  Configuration Issues: There may be issues with the configuration of the company code, chart of accounts, or tax settings that prevent the system from processing the transaction correctly.
  
  
  Solution:
  
  
  Check Configuration:
  
  Ensure that the company code (CoCode) and chart of accounts (ChtAcct) are correctly configured to handle rounding differences.
  Verify that the tax settings for the relevant company code are