How To Fix 26078 - Special characters & not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: 26 - Dokumentenverwaltung

• Message number: 078

• Message text: Special characters & not allowed

What causes this issue?

The following three special characters are not supported: <ZH>& * ,</>

System Response

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

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 26078 - Special characters & not allowed ?

  The SAP error message 26078, which states "Special characters & not allowed," typically occurs when a user attempts to input data that contains special characters in a field that does not accept them. This can happen in various contexts, such as when entering data in a transaction, creating a master record, or updating information in SAP.
  Cause:
  The error is triggered when:
  
  The input data contains special characters (e.g., &, %, $, #, etc.) that are not permitted in the specific field.
  The field is defined in the system to only accept alphanumeric characters or specific formats.
  The data validation rules set in the SAP system restrict the use of certain characters.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify the Field: Determine which field is causing the error. This is usually indicated in the error message or can be inferred from the context of the transaction.
  
  
  Remove Special Characters: Edit the input data to remove any special characters. Ensure that you only use allowed characters, which typically include letters (A-Z, a-z) and numbers (0-9).
  
  
  Check Field Specifications: Review the field specifications in the SAP documentation or consult with your SAP administrator to understand the allowed character set for that specific field.
  
  
  Data Validation: If you are developing or customizing a program, ensure that proper data validation is implemented to prevent users from entering invalid characters.
  
  
  User Training: Educate users about the restrictions on input data to minimize the occurrence of this error in the future.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or updates related to this error message. SAP frequently updates its documentation and may provide additional context or solutions.
  Field Documentation: Review the technical documentation for the specific transaction or module you are working with to understand the constraints on data entry.
  Transaction Codes: If the error occurs in a specific transaction, you may want to look up the transaction code in the SAP help documentation for more details on input requirements.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team for further assistance.