How To Fix CNV_10500021 - Parameter could not be written; check CNV_00001_PARAMS

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10500 - Messages of Special Ledger Package

• Message number: 021

• Message text: Parameter could not be written; check CNV_00001_PARAMS

What causes this issue?

With regard to further processing, a parameter is to be created so that
various subsequent programs will not be executed. However the parameter
could not be created in table CNV_00001_PARAMS.

System Response

The record will not be created and will then be missing during further
processing.

How to fix this error?

Check table CNV_00001_PARAMS for possible reasons (such as insufficient
space) and create the parameter manually:
PACKID = <active package>
PARAMNAME = GL_OBJECT_NOTFOUND
PARAMTYPE = F
VALUEFROM = X
ORIGPACK = 10500

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10500021 - Parameter could not be written; check CNV_00001_PARAMS ?

  The SAP error message CNV_10500021 indicates that there is an issue with writing a parameter in the context of a data conversion or migration process. This error is often associated with the SAP Landscape Transformation (SLT) or other data migration tools that utilize the CNV (Conversion) namespace.
  Cause:
  The error message suggests that the system is unable to write a specific parameter due to one of the following reasons:
  
  Missing or Incorrect Configuration: The parameter that the system is trying to write may not be properly configured or may be missing.
  Authorization Issues: The user executing the process may not have the necessary authorizations to write the parameter.
  Database Issues: There could be issues with the database connection or the database itself that prevent writing the parameter.
  Data Type Mismatch: The data type of the parameter being written may not match the expected data type in the database.
  Locking Issues: The parameter may be locked by another process or user, preventing the current process from writing to it.
  
  Solution:
  To resolve the error CNV_10500021, you can take the following steps:
  
  
  Check Configuration: Review the configuration settings related to the parameters in the CNV_00001_PARAMS table. Ensure that all required parameters are correctly defined and populated.
  
  
  Review Authorizations: Verify that the user executing the process has the necessary authorizations to write to the parameters. You may need to consult with your SAP security team to ensure proper roles and permissions are assigned.
  
  
  Database Connection: Check the database connection settings to ensure that the connection is active and functioning correctly. Look for any database errors or issues that may be affecting the write operation.
  
  
  Data Type Validation: Ensure that the data types of the parameters being written match the expected data types in the database. If there is a mismatch, correct the data type or the value being written.
  
  
  Check for Locks: Investigate if there are any locks on the parameters that may be preventing the write operation. You can use transaction codes like SM12 to check for locks in the system.
  
  
  Review Logs: Check the application logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific conversion or migration process you are working on. There may be specific guidelines or known issues that can help you troubleshoot the problem.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SLG1 (Application Log), SM12 (Lock Entries), and SE11 (Data Dictionary) to investigate the issue further.
  SAP Notes: Search for SAP Notes related to the CNV namespace or the specific error message for any patches or updates that may address the issue.
  Community Forums: Consider checking SAP Community forums or other online resources where similar issues may have been discussed.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.