C_ARSUM Ariba Supplier Management Practice Question
Exhibit
Error: [ERR-503] - Duplicate Tax ID found in database - SID: 998231 - Source: ERP_SYNC_SERVICE
Refer to the exhibit. What is the most effective way to resolve this synchronization error?
⚠ Common exam trap
Candidates often attempt to fix synchronization errors within Ariba alone, failing to realize that the root cause is almost always inconsistent master data in the source ERP system.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Clean the master data in the ERP and trigger a re-sync.
Duplicate tax IDs indicate a conflict between the ERP's master data and the SAP Ariba system's unique identifier constraints. Resolving this requires cross-referencing the SID (Supplier ID) in both systems to determine if they refer to the same legal entity. Once identified, the administrator must merge or clean the master data in the ERP before re-triggering the synchronization, ensuring the Ariba cloud profile remains consistent and audit-ready.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Manually delete the existing supplier profile in SAP Ariba.
Why it's wrong here
Deleting a profile without reconciling the ERP record can lead to data loss and orphan records in the ERP. SAP Ariba maintains strict referential integrity; manual deletion does not resolve the root cause of the conflict and may disrupt existing transactional history linked to the supplier profile.
- ✗
Modify the tax ID in the Ariba Supplier Profile directly.
Why it's wrong here
Supplier profile data that originates from an ERP should be managed as 'read-only' in Ariba regarding master data fields. Changing the tax ID in Ariba will only lead to further synchronization mismatches during the next update cycle, as the ERP remains the system of record for master data.
- ✓
Clean the master data in the ERP and trigger a re-sync.
Why this is correct
The ERP is the system of record for master data. Resolving the conflict at the source ensures that the integration logic receives consistent data. Triggering a re-sync after correcting the source record allows the Ariba integration service to update the profile correctly without encountering duplicate key errors.
- ✗
Ignore the error and disable the ERP_SYNC_SERVICE module.
Why it's wrong here
Disabling the synchronization service is a critical operational failure that stops all supplier data updates. This prevents the business from receiving necessary updates on supplier status, banking info, or tax status, which poses significant compliance and operational risks to the procurement team and broader business functions.
Visual reference
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official SAP exam blueprint
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