How To Fix CNV_PE304 - Knowledge base of known applications is missing (see long text)

CNV_PE304 - Overview

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 304

• Message text: Knowledge base of known applications is missing (see long text)

What causes this issue?

To check which ledger totals tables are supported for a transfer, the
tool requires certain information within its knowledge base. However,
the knowledge base table (CNV_PE_TT_APPLC) is not filled in the current
system.

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?

This error indicates an error in the pre-delivered Customizing. Contact
SAP for support.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_PE304 - Details

• The SAP error message CNV_PE304 indicates that the knowledge base of known applications is missing. This error typically arises during data migration or conversion processes, particularly when using SAP's tools for data migration, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
  
  Cause:
  
  Missing Knowledge Base: The error suggests that the system cannot find the necessary knowledge base that contains the mappings and rules for the data conversion process.
  
  Configuration Issues: There may be issues with the configuration of the migration tools or the environment in which they are running.
  Installation Problems: The required components or packages for the migration tool may not be installed or properly configured in the SAP system.
  Version Compatibility: The version of the migration tool may not be compatible with the version of the SAP system you are using.
  
  
  Solution:
  
  Check Installation: Ensure that all necessary components for the migration tool are installed correctly. This may involve checking the installation