How To Fix E4078 - Name of output class is empty or does not contain allowed characters

SAP Error Message - Details

• Message type: E = Error

• Message class: E4 - Program maintenance functions within development system

• Message number: 078

• Message text: Name of output class is empty or does not contain allowed characters

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message E4078 - Name of output class is empty or does not contain allowed characters ?

  The SAP error message E4078, which states "Name of output class is empty or does not contain allowed characters," typically occurs in the context of SAP Smart Forms or SAPscript when there is an issue with the naming conventions of the output class being used.
  Cause:
  
  Empty Output Class Name: The output class name is not provided or is left blank.
  Invalid Characters: The output class name contains characters that are not allowed. SAP has specific naming conventions that restrict the use of certain characters.
  Incorrect Configuration: The output type or configuration settings may not be set up correctly, leading to this error.
  
  Solution:
  
  
  Check Output Class Name:
  
  Ensure that the output class name is not empty. If it is, provide a valid name.
  Verify that the name adheres to SAP's naming conventions. Typically, valid names should:
  
  Start with a letter.
  Contain only alphanumeric characters and underscores.
  Not exceed the maximum length allowed (usually 30 characters).
  
  
  
  
  
  Review Configuration:
  
  Go to the relevant transaction (e.g., NACE for output types) and check the configuration for the output type you are working with.
  Ensure that the output class is correctly assigned and configured.
  
  
  
  Test with Valid Data:
  
  If you are using a program or a form, test it with valid data to ensure that the output class is being populated correctly.
  
  
  
  Check for Custom Code:
  
  If there is any custom code involved in generating the output, review it to ensure that it is correctly setting the output class name.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidelines on naming conventions and output class configurations.
  
  
  
  Related Information:
  
  SAP Smart Forms and SAPscript: These are tools used for designing and printing forms in SAP. Understanding how they work can help in troubleshooting related issues.
  Transaction Codes: Familiarize yourself with transaction codes like NACE (for output types) and SMARTFORMS (for Smart Forms) to navigate and configure output settings.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  
  If the issue persists after following these steps, consider reaching out to your SAP Basis or ABAP team for further assistance, as they may have more insights into the specific configurations and customizations in your SAP environment.