How To Fix CNV_PE_GEN201 - Generation requested with JOIN, but preselection table is not available

CNV_PE_GEN201 - Overview

• Message type: E = Error

• Message class: CNV_PE_GEN - Messages for object generation

• Message number: 201

• Message text: Generation requested with JOIN, but preselection table is not available

What causes this issue?

The generation of the simple selection program and/or selection function
module was requested to be done including a JOIN of the preselection
table of the corresponding embedded specification position (linked to
the given area <ZH>&V1&</>).
The given area has <ZH>no</> link to an embedded specification, hence
the JOIN cannot be generated at all.

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 is information only.
The program/function module will be generated anyway based on the
currently available area configuration.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_PE_GEN201 - Details

• The SAP error message CNV_PE_GEN201 indicates that a generation process was requested with a JOIN operation, but the necessary preselection table is not available. This error typically occurs in the context of data migration or conversion processes, particularly when using SAP's Conversion Tools.
  
  Cause:
  
  Missing Preselection Table: The error arises when the system expects a preselection table to be available for the JOIN operation, but it cannot find it. This can happen if the preselection table was not created or if it was deleted or not properly configured.
  
  Configuration Issues: There may be issues with the configuration of the data migration project, such as incorrect settings or missing steps in the setup process.
  Data Model Changes: Changes in the underlying data model or schema may lead to the absence of the expected preselection table.
  
  
  Solution:
  
  Check Preselection Table: Verify if the required preselection table exists in the database. You can do this by checking the relevant