How To Fix CM_REPORT_GEN023 - Value types do not match for symbol &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_REPORT_GEN - Report Generation

• Message number: 023

• Message text: Value types do not match for symbol &1

What causes this issue?

More than one value was determined for the parameter symbol &V1& during
the determination of the default parameter values (determination
function &V2&). These values were created with different value types.
The values cannot be output together with these different value types i
the output of multiple values for symbol &V1&.

System Response

Only values with corresponding value types are output during the output
of multiple values for symbol &V1&. Values without compatible value
types are not taken into account. This means, at least one of the values
does not appear on the report.

How to fix this error?

To avoid outputting multiple values of a symbol with different value
types, you can use a repetition group for the discrete explosion of
multiple values (D repetition group). The symbol is integrated into the
discrete repetition group. This way, every value type is treated as a
single value and not as a group of values of different value types.

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 CM_REPORT_GEN023 - Value types do not match for symbol &1 ?

  The SAP error message CM_REPORT_GEN023 with the description "Value types do not match for symbol &1" typically occurs in the context of report generation or data processing within SAP systems, particularly when there is a mismatch in the expected data types for a variable or symbol.
  Cause:
  The error is usually caused by one of the following issues:
  
  Data Type Mismatch: The variable or symbol referenced (denoted by &1) is expected to have a certain data type (e.g., integer, string, date), but the actual data being processed does not match this expected type.
  Incorrect Configuration: There may be a configuration issue in the report or program where the data types of fields or parameters are not aligned.
  Data Source Issues: The data being pulled from a database or other source may have unexpected formats or types, leading to the mismatch.
  Programming Errors: If custom code is involved, there may be errors in how variables are defined or used.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Data Types: Review the definition of the variable or symbol referenced in the error message. Ensure that the data type of the variable matches the expected type in the context where it is being used.
  
  
  Review Report Configuration: If the error occurs in a report, check the configuration settings for the report. Ensure that all fields and parameters are correctly defined and that their data types are compatible.
  
  
  Debugging: If you have access to the ABAP code, use the debugger to step through the code and identify where the mismatch occurs. Look for any assignments or operations involving the variable in question.
  
  
  Data Validation: If the data is being pulled from a database or external source, validate the data to ensure it conforms to the expected formats. You may need to clean or transform the data before processing.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the report or transaction you are working with.
  
  
  Seek Help from SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support or consulting with a technical expert who has experience with the specific module or report.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message CM_REPORT_GEN023.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting, such as SE80 (Object Navigator) or SE38 (ABAP Editor).
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify and resolve the cause of the CM_REPORT_GEN023 error in your SAP environment.