C_ARSUM Ariba Supplier Management Practice Question
Exhibit
ERROR: [System.Validation.Constraint] - Field 'Bank_Account_Number' failed regex match for pattern '[A-Z]{2}[0-9]{11}'.Refer to the exhibit. Why did the supplier's profile update fail?
⚠ Common exam trap
Candidates often assume the failure is due to a server error or permission issue, overlooking that Ariba enforces strict data validation rules like regex for fields like bank accounts.
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
✓
The input data did not follow the required formatting rule.
The error indicates that the bank account input did not match the required regular expression pattern, which enforces a specific international bank account format. This validation error is a deliberate safeguard to ensure financial data integrity and prevent downstream errors in the payment process. By rejecting non-conforming data, the system forces the supplier to provide correct information, which is essential for accurate, secure, and compliant financial transactions with global suppliers.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The bank account is already in use by another supplier.
Why it's wrong here
The error log refers specifically to a 'regex match' failure, not a duplicate key error. A duplicate bank account error would produce a unique constraint violation message. Because the error is tied to a regex pattern, the issue is with the format of the data entered, not its existing usage.
- ✓
The input data did not follow the required formatting rule.
Why this is correct
The error message explicitly points to a failed regex match, which means the entered bank account number did not conform to the predefined pattern. This validation rule is critical for maintaining data standards and ensuring that bank account information is entered correctly for subsequent payment integration with the ERP system.
- ✗
The server connection to the bank was timed out.
Why it's wrong here
A server timeout would result in a connection error, not a validation constraint error. The error message is a standard validation response indicating that the data itself is invalid according to the business rules. It does not suggest any issues with network connectivity or communication with external bank systems.
- ✗
The supplier does not have permission to update bank details.
Why it's wrong here
Permission-related errors would return a specific 'Access Denied' or 'Insufficient Privileges' message. This error is a data validation issue, not a security or authorization issue. The supplier is clearly able to access the field, but the data they have provided is failing to meet the format requirements defined by IT.
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JA
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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