How To Fix IST_EBS128 - The reference object ID &1 is not defined in the system

IST_EBS128 - Overview

• Message type: E = Error

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

• Message number: 128

• Message text: The reference object ID &1 is not defined in the system

What causes this issue?

The <DS:DE.IST_ADD_REFOBJID>additional reference object ID</> that you
specified is not defined in the system.

System Response

The system cannot identify the type of the
<DS:DE.IST_ADD_REFOBJ>additional reference object</>.

How to fix this error?

Choose an existing identification (from the IST_ADD_REF table) or ask
your system administrator to define a new identification.

Procedure for System Administrators

You can define a new identification for an additional reference object
using the ISTV_TADD_REF view (transaction SM30).

Error message extract from SAP system. Copyright SAP SE.

IST_EBS128 - Details

• The SAP error message IST_EBS128, which states "The reference object ID &1 is not defined in the system," typically occurs in the context of Electronic Bank Statement (EBS) processing. This error indicates that the system is unable to find a reference object (such as a bank account, customer, vendor, or other relevant entity) that is expected to be present in the system.
  
  Cause:
  
  Missing Configuration: The reference object ID (e.g., bank account number) is not configured in the system.
  Incorrect Data Entry: The reference object ID may have been entered incorrectly in the transaction or configuration.
  Data Migration Issues: If data was migrated from another system, the reference object may not have been transferred correctly.
  Inactive or Deleted Objects: The reference object may have been deleted or marked as inactive in the system.
  
  
  Solution:
  
  Check Configuration: Verify that the reference object ID exists in the relevant configuration settings. For example, if it’s a bank account, ensure that