How To Fix G00657 - Conversion to internal data format failed

G00657 - Overview

• Message type: E = Error

• Message class: G00 - SAP Consolidation

• Message number: 657

• Message text: Conversion to internal data format failed

What causes this issue?

The current data row contains the value '&V2&' for the characteristic
&V1&.
This character string could not be converted to an internal data format
using the conversion exit assigned to the characteristic &V1&.

System Response

The system cannot interpret the characteristic value.

How to fix this error?

Check the data format of the characteristic &V1&, for example, by
calling up F1 Help on the field names in the upload method definition.
Format the characteristic values in all the data rows so that they can
be converted to an internal data format. Avoid using special
characters.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message G00657 - Conversion to internal data format failed ?

  The SAP error message G00657, "Conversion to internal data format failed," typically occurs when there is an issue with data conversion in the SAP system. This error can arise in various contexts, such as during data entry, data import, or when processing transactions. Here are some common causes, potential solutions, and related information:
  Causes:
  
  
  Data Format Issues: The data being processed may not conform to the expected format. This can include incorrect date formats, numeric values with invalid characters, or strings that exceed length limits.
  
  
  Field Length Exceeded: If the data being entered exceeds the defined length of the field in the database, it can lead to conversion errors.
  
  
  Invalid Characters: Special characters or non-ASCII characters in the input data can cause conversion failures.
  
  
  
  Configuration Issues: Incorrect settings in the system configuration, such as data types or field definitions, can lead to conversion problems.
  
  
  Language/Locale Settings: Mismatches in language or locale settings can affect how data