Symptom
ERP to C4 business partner replication fails with the error "Federal Business Number is invalid" and inbound status "Error while processing inbound third-party communication" for interface BusinessPartnerReplication.
Environment
SAP Cloud for Customer
Reproducing the Issue
- Trigger a Business Partner replication from the source ERP system to C4C.
- Open Web Service Message Monitoring in C4C.
- Filter inbound messages in the BusinessPartnerReplication interface.
- Observe the error status "Error while processing inbound third party communication" and the error text "Federal Business Number is invalid".
Cause
- The tax identification value (federal business number) provided by the source system does not comply with the country/region-specific validation rules enforced in C4C (for example, the Luhn check for Canadian federal business numbers), so the inbound message is rejected.
Note: Refer to the link more details on Luhn check: https://en.wikipedia.org/wiki/Luhn_algorithm
The Luhn algorithm (developed by IBM scientist Hans Peter Luhn), also known as the “modulus 10” or “mod 10” algorithm, is a simple check-digit formula used to validate various identification numbers. Its purpose is to ensure that when a number is entered manually, the system can quickly detect errors using this validation logic.
Resolution
- Correct the tax number in the source system so that it matches the required country/region format and category; then reprocess the BusinessPartnerReplication message to C4C.
- If the business decision is to accept the tax number as maintained in the source system and avoid the target-side validation, adjust the country settings in C4C:
- Go to the Business Configuration work center.
- Go to the Implementation Projects work center view.
- Open Fine-Tune and search for "Countries/Regions."
- Choose "Edit Countries/Regions" and select the relevant country/region.
- In the Tax Attributes tab, set "Tax field Check Enabled" to "No."
- Save and reprocess the BusinessPartnerReplication message.
- Note that standard validation cannot be removed at the object level; optionally, propose an enhancement via the influence site if different behavior is required.
See Also
- KBA 3729790 Federal Business Number is invalid.
Keywords
Business partner replication, ERP, C4C, federal business number invalid, tax number, validation, businesspartnerreplication, countries/regions, integration. , KBA , LOD-CRM-ACC , Account , LOD-CRM-OPP , Opportunity Management , Problem
SAP Knowledge Base Article - Public