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This article applies to:

  • Product: ONESOURCE Indirect Tax
  • Sub-Product: SAP

6.9.1.0 SAP S/4HANA 2025 Compatibility for Global Next Integration

Product:
 ONESOURCE Indirect Tax Integration for SAP – Global Next
Version:
 6.9.1.0
Published date
: December-2025.

Symptom

Upon upgrading an SAP system to S/4HANA 2025, customers may encounter syntax errors in ABAP objects within the
/IDT/
 namespace. These errors typically manifest as "Duplicate field UNPL_REFWR" and can cause activation failures or runtime short dumps (
SYNTAX_ERROR
), impacting processes that use the affected objects, particularly in Materials Management (MM).

Root Cause

The root cause is a field name collision between the SAP standard and the ONESOURCE integration.
  • In the S/4HANA 2025 release, SAP introduced a new field named
    UNPL_REFWR
     into a standard core data structure.
  • The ONESOURCE integration structure
    /IDT/MMCR_DRSEG_CO
     also contained a field with the same name.
When the system attempts to use a program that references both structures, the ABAP runtime detects a duplicate field declaration, which results in a syntax error.

Resolution

To resolve this conflict, Thomson Reuters has released a corrective transport that modifies the ONESOURCE structure
/IDT/MMCR_DRSEG_CO
 to eliminate the duplicate field. This modification ensures the ONESOURCE data dictionary objects are fully compatible with the SAP S/4HANA 2025 standard. We have tested this fix on S/4HANA 2025 Initial Shipment Stack.

Required Action

To prevent or resolve the syntax errors, customers must import the following corrective transport request:
Implementation Timing:
 This transport is flexible and can be imported according to one of the following scenarios:
  • Proactive (Recommended):
     Import the transport
    before
     executing the S/4HANA 2025 system upgrade. This will prevent the syntax errors from ever occurring.
  • Reactive:
     Import the transport
    after
     the S/4HANA 2025 upgrade is complete to correct any syntax errors that have appeared.
After importing the transport, ensure all relevant objects in the
/IDT/
 namespace are activated successfully.