How To Fix 1I001 - Reconciliation key balance not zero (&1, &2, &3, &4)

1I001 - Overview

• Message type: E = Error

• Message class: 1I - BCA: General Ledger Integration

• Message number: 001

• Message text: Reconciliation key balance not zero (&1, &2, &3, &4)

What causes this issue?

In bank area &V1& the balance of the reconciliation key &V2&,
supplement &V3&, for all debit and credit amounts in curreny &V4& is
not zero. However, this is required for a correct transfer of the
balances to the general ledger.

How to fix this error?

The data is inconsistent. Inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.

1I001 - Details

• The SAP error message 1I001: Reconciliation key balance not zero (&1, &2, &3, &4) typically occurs in the context of financial accounting, particularly when dealing with reconciliation accounts. This error indicates that there is a discrepancy in the balance of a reconciliation key, meaning that the total debits and credits do not match, which is essential for accurate financial reporting.
  Causes:
  
  Uncleared Items: There may be open items in the reconciliation account that have not been cleared or settled.
  Posting Errors: Incorrect postings or entries that do not balance can lead to this error.
  Manual Adjustments: Manual adjustments made to accounts without corresponding entries can create imbalances.
  Data Migration Issues: If data was migrated from another system, discrepancies may arise due to differences in how accounts were handled.
  
  Configuration Issues: Incorrect configuration of the reconciliation accounts or related settings in the SAP system.
  
  Solutions:
  
  Review Open Items: Check the reconciliation account for any open items that need to