How To Fix WL170 - Error during type conversion

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 170

• Message text: Error during type conversion

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 WL170 - Error during type conversion ?

  The SAP error message WL170, which indicates "Error during type conversion," typically occurs when there is an issue with data type conversion in the SAP system. This can happen in various scenarios, such as when data is being transferred between different systems, during data processing in ABAP programs, or when handling input/output operations.
  Causes of WL170 Error
  
  
  Data Type Mismatch: The most common cause is a mismatch between the expected data type and the actual data type being processed. For example, trying to convert a string to a numeric type when the string contains non-numeric characters.
  
  
  Invalid Data Format: If the data being processed does not conform to the expected format (e.g., date formats, currency formats), it can lead to conversion errors.
  
  
  Null or Empty Values: Attempting to convert null or empty values can also trigger this error, especially if the conversion expects a valid value.
  
  
  Incorrect Field Length: If the length of the data being converted exceeds the defined length of the target field, it can cause an overflow error.
  
  
  Custom Code Issues: If there are custom ABAP programs or enhancements that handle data conversion, bugs or logic errors in that code can lead to this error.
  
  
  Solutions to WL170 Error
  
  
  Check Data Types: Review the data types of the variables involved in the conversion. Ensure that they are compatible and that the data being passed matches the expected format.
  
  
  Validate Input Data: Before performing conversions, validate the input data to ensure it meets the expected criteria (e.g., check for null values, correct formats).
  
  
  Use Exception Handling: Implement exception handling in your ABAP code to gracefully manage conversion errors. This can help in identifying the specific data causing the issue.
  
  
  Debugging: Use the SAP debugger to step through the code where the error occurs. This can help identify the exact point of failure and the data involved.
  
  
  Review Custom Code: If the error is occurring in custom ABAP programs, review the logic for any potential issues related to data conversion.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  Related Information
  
  Transaction Codes: You can use transaction codes like SE80 (Object Navigator) or SE38 (ABAP Editor) to analyze and debug the relevant programs.
  Data Dictionary: Use transaction SE11 to check the definitions of the data types and structures involved in the conversion.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the WL170 error in your SAP environment.