How To Fix /PM0/3FB_MESSAGES039 - Only character fields are allowed as a result type

SAP Error Message - Details

• Message type: E = Error

• Message class: /PM0/3FB_MESSAGES -

• Message number: 039

• Message text: Only character fields are allowed as a result type

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 /PM0/3FB_MESSAGES039 - Only character fields are allowed as a result type ?

  The SAP error message /PM0/3FB_MESSAGES039: Only character fields are allowed as a result type typically occurs in the context of SAP PM (Plant Maintenance) or similar modules when there is an issue with the data types being used in a report, query, or function module. This error indicates that the system expects a character field but is receiving a different data type.
  Cause:
  
  Data Type Mismatch: The most common cause of this error is that a non-character field (like numeric or date fields) is being used where a character field is expected. This can happen in custom reports, queries, or function modules where the result type is defined incorrectly.
  Incorrect Field Mapping: If you are mapping fields in a report or a data extraction process, using a field that is not of character type can trigger this error.
  Configuration Issues: Sometimes, the configuration settings in the SAP system may not align with the expected data types for certain operations.
  
  Solution:
  
  Check Field Definitions: Review the field definitions in your report or function module. Ensure that all fields expected to return character data are indeed defined as character fields in the data dictionary (DDIC).
  Modify Data Types: If you have control over the code, modify the data types of the fields being used in the result set to ensure they are character types. This may involve changing the data type in the ABAP code or the data model.
  Use Type Conversion: If you need to use non-character fields, consider converting them to character types using appropriate ABAP functions (e.g., CONCATENATE, WRITE, or type casting).
  Review Queries/Reports: If the error occurs in a query or report, check the selection criteria and output fields to ensure they are correctly defined.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on data types and expected formats for the operation you are performing.
  
  Related Information:
  
  ABAP Data Types: Familiarize yourself with the different data types in ABAP, especially character types (e.g., CHAR, STRING).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, there may be specific fixes or updates provided by SAP.
  Debugging: If you have access to the ABAP debugger, you can step through the code to identify where the data type mismatch is occurring.
  Community Forums: Consider reaching out to SAP community forums or support channels for additional insights or similar experiences from other users.
  
  By addressing the data type mismatch and ensuring that only character fields are used where required, you should be able to resolve the error message /PM0/3FB_MESSAGES039.