Hi @Community Alums , 

This is an IRE related error discovery is failing to insert the CI into the CMDB. 

• Navigate to: CMDB → Identification and Reconciliation → CI Identifiers

• Verify that a Lookup Rule exists for  cmdb_ci_computer.

  • If missing, create a new rule with Lookup set to Serial Number for cmdb_ci_computer.

• 

   

2. Add Related Rule for ARP Table

• Check if a Related Identification Rule exists between cmdb_ci_computer and discovery_net_arp_table.

• If not, create one so the engine knows how to reconcile relationships between computers and ARP entries.

3. Validate Serial Number Data

• Sometimes the error is triggered because the payload has an empty or duplicate serial number.

• Run a data check in the payload or the discovery log for duplicate/blank serials.

4. Re-run Discovery the discovery on the Ip address again

 If you found this answer helpful, please mark it as “Helpful” or kindly accept the solution.

Regards, 

Srinija Amisthapur 

Rising Star 2025 

Certified Technical Architect