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.