How To Fix CNV_NCE_BAS434 - Simulation for number range interval &1 will run during system lock

CNV_NCE_BAS434 - Overview

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 434

• Message text: Simulation for number range interval &1 will run during system lock

What causes this issue?

The number range object &V1& will be split into multiple number range
intervals. This means that the simulation for this number range must run
during the phase <ZK>Preprocessing programs DURING system lock</>.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_NCE_BAS434 - Details

• The SAP error message CNV_NCE_BAS434 indicates that a simulation for a number range interval is being attempted while the system is in a locked state. This typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools.
  
  Cause:
  
  System Lock: The system is locked for certain operations, which can happen during data migration, upgrades, or maintenance activities. This lock prevents any changes or simulations from being executed.
  Concurrent Processes: There may be other processes running that are locking the number range intervals, preventing the simulation from proceeding.
  
  Configuration Issues: There might be misconfigurations in the number range settings or the migration process itself.
  
  
  Solution:
  
  Check System Lock Status: Verify if the system is indeed locked. You can check transaction codes like SM12 (for lock entries) or SM21 (for system logs) to identify any active locks.
  Wait for Lock Release: If the system is locked due to ongoing