How To Fix CNV_PE624 - Parameter &1 is a table type with key category "not specified"

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 624

• Message text: Parameter &1 is a table type with key category "not specified"

What causes this issue?

Parameter <ZH>&V1&</> of the given interface is typed like table type
<ZH>&V2&</> whose key category is <ZK>Not specified</>.
Table type signature parameters with a not specified key category are
<ZH>not </>supported.

System Response

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

How to fix this error?

The given interface <ZH>cannot </>be used as a transfer method. Choose
another interface.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE624 - Parameter &1 is a table type with key category "not specified" ?

  The SAP error message "CNV_PE624 Parameter &1 is a table type with key category 'not specified'" typically occurs in the context of data migration or conversion processes, particularly when using the SAP Data Migration Cockpit or similar tools. This error indicates that a parameter defined as a table type does not have a specified key category, which is necessary for the system to understand how to handle the data correctly.
  Cause:
  
  Missing Key Definition: The table type parameter is defined without a key category, which is essential for identifying unique records in the table.
  Incorrect Data Structure: The data structure being used may not be properly defined in the ABAP Dictionary, leading to ambiguity in how the data should be processed.
  Configuration Issues: There may be issues in the configuration of the data migration project or the specific mapping of fields.
  
  Solution:
  
  Define Key Category: Ensure that the table type parameter has a key category defined. This can typically be done in the ABAP Dictionary (SE11) by editing the table type and specifying the key fields.
  Check Data Structure: Review the data structure being used in the migration process to ensure that it is correctly defined and that all necessary keys are specified.
  Review Migration Configuration: Go through the configuration settings of the data migration project to ensure that all parameters are correctly set up, including any mappings or transformations.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using for any additional requirements or troubleshooting steps.
  Testing: After making changes, perform a test run of the migration process to ensure that the error has been resolved.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  Data Migration Cockpit: Familiarize yourself with the SAP Data Migration Cockpit and its requirements for data structures and parameters.
  
  If the issue persists after following these steps, it may be beneficial to consult with an SAP expert or support for further assistance.