How To Fix NRSCNV312 - When enabling/disabling high cardinality, no other operations are allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: NRSCNV - Message class

• Message number: 312

• Message text: When enabling/disabling high cardinality, no other operations are allowed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message NRSCNV312 - When enabling/disabling high cardinality, no other operations are allowed ?

  The SAP error message NRSCNV312 typically occurs in the context of enabling or disabling high cardinality in SAP systems, particularly when working with data models or analytics. This error indicates that the system is currently processing a task that does not allow for other operations to be performed simultaneously.
  Cause:
  The primary cause of this error is that the system is in a state where it is executing a long-running operation or a transaction that locks certain resources. When high cardinality is being enabled or disabled, the system requires exclusive access to certain data structures, and if another operation is attempted during this time, the NRSCNV312 error is triggered.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Wait for Current Operations to Complete: If the system is currently processing a task, wait until it finishes. You can check the status of ongoing processes in transaction codes like SM37 (Job Monitoring) or SM50 (Process Overview).
  
  
  Check for Locks: Use transaction code SM12 to check for any locks that might be preventing the operation. If you find any unnecessary locks, you can release them if you have the necessary authorizations.
  
  
  Retry the Operation: Once you have confirmed that no other operations are running and there are no locks, try enabling or disabling high cardinality again.
  
  
  System Performance: If the system is frequently encountering this issue, consider reviewing system performance and resource allocation. High system load can lead to longer processing times and increased likelihood of encountering this error.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to high cardinality settings for any specific prerequisites or considerations that may apply to your version of SAP.
  
  
  Contact SAP Support: If the issue persists and you are unable to resolve it, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration or version.
  
  
  Related Information:
  
  High Cardinality: This term refers to data models that have a large number of unique values in a particular field. Enabling high cardinality can improve performance for certain types of queries but may also require careful management of system resources.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM37 (Job Monitoring), SM50 (Process Overview), and SM12 (Lock Entries) to monitor and manage system processes effectively.
  SAP Notes: Check for any SAP Notes related to NRSCNV312 or high cardinality settings that may provide additional context or solutions.
  
  By following these steps, you should be able to address the NRSCNV312 error effectively.