How To Fix IST_EBS172 - Reconciliation key not determined (problem in event T402)

IST_EBS172 - Overview

• Message type: E = Error

• Message class: IST_EBS - Interface Between IS-T and External Billing System

• Message number: 172

• Message text: Reconciliation key not determined (problem in event T402)

What causes this issue?

The function module called at event T402 could not find a
reconciliation key.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IST_EBS172 - Reconciliation key not determined (problem in event T402) ?

  The SAP error message IST_EBS172, which states "Reconciliation key not determined (problem in event T402)," typically occurs in the context of Electronic Bank Statement (EBS) processing. This error indicates that the system was unable to determine a reconciliation key for a specific transaction, which is necessary for matching bank statement items with the corresponding items in the SAP system.
  Causes:
  
  Missing Configuration: The reconciliation key may not be properly configured in the system. This can happen if the necessary settings for the bank statement processing are incomplete or incorrect.
  Incorrect Mapping: The mapping between the bank statement items and the corresponding accounting entries may not be set up correctly.
  Data Issues: There may be issues with the data in the bank statement or in the corresponding accounting entries, such as missing or incorrect information.
  Event T402: This event is related to the processing of incoming bank statements. If there is a problem with the event