How To Fix CNV20200109 - Error message: unknown_error in function module WS_UPLOAD

CNV20200109 - Overview

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 109

• Message text: Error message: unknown_error in function module WS_UPLOAD

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.

CNV20200109 - Details

• The SAP error message CNV20200109 with the description "unknown_error in function module WS_UPLOAD" typically occurs during data upload processes, particularly when using the SAP Data Transfer Workbench or similar tools. This error can arise due to various reasons, and here are some common causes, potential solutions, and related information:
  Causes:
  
  File Format Issues: The uploaded file may not be in the expected format (e.g., CSV, XLSX) or may contain invalid data.
  Data Consistency: The data being uploaded may violate integrity constraints or data types defined in the target SAP tables.
  Authorization Issues: The user performing the upload may not have the necessary authorizations to execute the upload function.
  System Configuration: There may be configuration issues in the SAP system that affect the upload process.
  Network Issues: Temporary network issues or interruptions during the upload process can lead to this error.
  Function Module Errors: There may be bugs or issues within the WS_UPLOAD function module itself.
  
  Solutions:
  
  Check File Format: