How To Fix CNV_20000004 - Check if field ZUONR in table BSEG is to be converted

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20000 - Messages for fiscal year change

• Message number: 004

• Message text: Check if field ZUONR in table BSEG is to be converted

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20000004 - Check if field ZUONR in table BSEG is to be converted ?

  The SAP error message CNV_20000004 typically arises during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This specific error indicates that there is an issue with the field ZUONR in the table BSEG (the line item table for accounting documents).
  Cause:
  The error message suggests that the system is checking whether the field ZUONR (which is used for assignment numbers in accounting documents) in the BSEG table is set up for conversion. This can occur due to several reasons:
  
  Field Configuration: The field may not be properly configured for the migration process, or it may not be included in the mapping or transformation rules.
  Data Inconsistencies: There may be inconsistencies or unexpected values in the data that are causing the conversion process to fail.
  Missing Customization: If there are custom fields or modifications in the system, they may not be accounted for in the migration process.
  Version Compatibility: The version of the source system may not be compatible with the target system, leading to issues with certain fields.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  Check Field Mapping: Review the mapping and transformation rules in the migration tool to ensure that the ZUONR field is included and correctly configured for conversion.
  Data Validation: Validate the data in the source system for the ZUONR field. Look for any inconsistencies, such as null values or unexpected formats, and correct them.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using to ensure that you are following the correct procedures for handling the ZUONR field.
  Custom Code Review: If there are custom developments or enhancements related to the BSEG table, review them to ensure they are compatible with the migration process.
  Testing: Perform a test migration with a smaller dataset to isolate the issue and verify that the changes made resolve the error.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on handling the ZUONR field during migration.
  
  Related Information:
  
  BSEG Table: The BSEG table contains line item details for accounting documents, and the ZUONR field is used for assignment numbers, which are important for document identification and reconciliation.
  Migration Cockpit: The SAP S/4HANA Migration Cockpit is a tool designed to facilitate the migration of data from legacy systems to SAP S/4HANA. It includes predefined migration objects and templates.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues and found solutions.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance.