How To Fix CNV_IUUC_ODQ010 - Maximum number of parallel previews reached, aborting this request

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_ODQ - Error messages for ODQ replication

• Message number: 010

• Message text: Maximum number of parallel previews reached, aborting this request

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_ODQ010 - Maximum number of parallel previews reached, aborting this request ?

  The SAP error message CNV_IUUC_ODQ010: Maximum number of parallel previews reached, aborting this request typically occurs in the context of data migration or data transfer processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services. This error indicates that the system has reached the maximum limit of parallel preview processes that can be executed at the same time.
  Cause:
  
  Parallel Processing Limit: The system has a predefined limit on the number of parallel preview processes that can be executed simultaneously. When this limit is reached, any new requests for previews will be aborted.
  High Load: If there are multiple users or processes trying to execute preview operations at the same time, it can lead to reaching the maximum limit.
  Configuration Settings: The configuration settings for parallel processing in the system may be set too low for the current workload.
  
  Solution:
  
  Check Current Processes: Monitor the current running preview processes. You can use transaction codes like SM50 or SM66 to check the active processes and identify if there are any stuck or long-running preview requests.
  Increase Parallel Limit: If you have the necessary authorizations, consider increasing the limit for parallel previews in the system configuration. This can usually be done in the relevant configuration settings for the data migration or transformation process.
  Stagger Requests: If possible, stagger the execution of preview requests to avoid hitting the maximum limit. This can be done by scheduling jobs at different times or by coordinating with other users.
  System Performance: Ensure that the system has adequate resources (CPU, memory) to handle the load. Sometimes, performance issues can exacerbate the problem.
  Consult Documentation: Refer to the SAP documentation or notes related to the specific data migration tool you are using for any additional configuration options or recommendations.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Familiarize yourself with transaction codes like SLT (for Landscape Transformation) or other relevant tools you are using for data migration.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.