XS031 - No conversion known for & to &

SAP Error Message - Details

• Message type: E = Error

• Message class: XS - SAPconnect: All messages

• Message number: 031

• Message text: No conversion known for & to &

What causes this issue?

An object in a document to be sent is in "&V1&" format. It is to be
converted to "&V2&" format for sending. No conversion function is
known.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

Action was terminated.

How to fix this error?

Make a function module available that performs the required conversion
from "&V1&" to "&V2&". Declare it in the configuration of SAPconnect
(table SXCONVERT2, possibly table SXDEVTYPE).

Error message extract from SAP system. Copyright SAP SE.

AnswerBot

• What is the cause and solution for SAP error message XS031 - No conversion known for & to & ?

  The SAP error message XS031, which states "No conversion known for & to &," typically occurs in the context of data type conversion issues within SAP systems, particularly in ABAP programs or when working with SAP HANA.
  Cause:
  This error usually arises when there is an attempt to convert data from one type to another, and the system does not recognize how to perform that conversion. Common scenarios include:
  
  Trying to convert incompatible data types (e.g., converting a string to a numeric type when the string does not represent a valid number).
  Using custom data types or structures that do not have a defined conversion path.
  Mismatched data types in function module parameters or method calls.
  
  Solution:
  To resolve the XS031 error, consider the following steps:
  
  
  Check Data Types: Review the data types involved in the conversion. Ensure that they are compatible and that the source data can be converted to the target type.
  
  
  Use Explicit Conversion: If you are working with ABAP, use explicit conversion functions like CONVERT or CAST to ensure that the conversion is handled correctly. For example:
  DATA: lv_string TYPE string,
        lv_number TYPE i.
  lv_string = '123'.
  lv_number = lv_string. " This may cause an error
  lv_number = CONDENSE( lv_string ). " Use explicit conversion
  
  
  Check Custom Types: If you are using custom data types or structures, ensure that they have the necessary conversion routines defined.
  
  
  Debugging: Use debugging tools to trace the point in the code where the error occurs. This can help identify the specific variables or data types causing the issue.
  
  
  Consult Documentation: Refer to SAP documentation or community forums for specific guidance related to the data types you are working with.
  
  
  Error Handling: Implement error handling in your code to manage situations where conversion might fail, allowing for graceful degradation or alternative processing.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Data Type Documentation: Familiarize yourself with the data types used in your SAP environment, including their properties and conversion rules.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the XS031 error and implement a suitable solution.