How To Fix EC155 - &1 contains a reserved character

SAP Error Message - Details

• Message type: E = Error

• Message class: EC - Development environment: Menu Painter

• Message number: 155

• Message text: &1 contains a reserved character

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message EC155 - &1 contains a reserved character ?

  The SAP error message EC155 indicates that a certain field contains a reserved character that is not allowed in the context of the operation you are trying to perform. This error typically arises when dealing with data input in SAP systems, especially in fields that are expected to contain specific formats or characters.
  Cause:
  The error occurs when:
  
  The input data contains special characters that are reserved for specific functions in SAP (e.g., characters like @, #, $, %, etc.).
  The field is expected to contain alphanumeric characters only, and the presence of reserved characters violates this rule.
  The data being processed may come from external sources or user input that has not been validated properly.
  
  Solution:
  To resolve the EC155 error, you can take the following steps:
  
  
  Identify the Field: Determine which field is causing the error. The error message should indicate the specific field (denoted by &1).
  
  
  Check Input Data: Review the data being entered into the field. Look for any special or reserved characters that may not be allowed.
  
  
  Remove or Replace Reserved Characters: 
  
  If you find any reserved characters, remove them or replace them with valid characters.
  Ensure that the data conforms to the expected format for that field.
  
  
  
  Validation: Implement validation checks in your data entry process to prevent the entry of reserved characters in the future.
  
  
  Consult Documentation: Refer to SAP documentation or the specific module's guidelines to understand the allowed characters for the field in question.
  
  
  Testing: After making the necessary changes, test the input again to ensure that the error is resolved.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message.
  Field Documentation: Review the data element or domain associated with the field to understand its constraints and allowed characters.
  User Exits or BAdIs: If you are customizing the input process, consider using user exits or BAdIs to enforce character restrictions programmatically.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant for further assistance.