How To Fix CX226 - Character "&1" cannot be used in a &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CX - Nachrichten für Konfigurationsprozess

• Message number: 226

• Message text: Character "&1" cannot be used in a &2

What causes this issue?

You used character &v1&. However, this character is not valid for a
table structure or a function. The only valid characters are A-Z, 0-9,
-_+ () > < - + _ and ?.

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?

Use only valid characters.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CX226 - Character "&1" cannot be used in a &2 ?

  The SAP error message CX226 indicates that a specific character (represented by "&1") cannot be used in a certain context (represented by "&2"). This error typically arises when there are restrictions on the characters that can be used in certain fields or identifiers within SAP.
  Cause:
  
  Invalid Characters: The error is often triggered when a user attempts to input a character that is not allowed in a specific field. This could be due to special characters, spaces, or other non-alphanumeric characters that are not permitted.
  Field Restrictions: Certain fields in SAP have predefined rules regarding the types of characters that can be used. For example, field names, variable names, or certain configuration settings may only allow alphanumeric characters.
  Data Entry Errors: Users may inadvertently enter invalid characters while inputting data, leading to this error.
  
  Solution:
  
  Identify the Context: Check the specific field or context where the error occurred. The error message will provide information about which character is invalid and in which context it is being used.
  Remove Invalid Characters: Edit the input to remove or replace the invalid character with a valid one. Ensure that only allowed characters are used.
  Refer to Documentation: Consult SAP documentation or help resources to understand the character restrictions for the specific field or context.
  Validation: Implement validation checks in your data entry processes to prevent invalid characters from being entered in the first place.
  Testing: After making changes, test the input again to ensure that the error is resolved.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error message. SAP frequently updates its knowledge base with solutions for common issues.
  Field Specifications: Review the specifications for the field in question to understand the allowed character set.
  User Training: Provide training for users on the correct data entry practices to minimize the occurrence of such errors.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant for further assistance.