How To Fix C1820 - Value "&" cannot be restricted

SAP Error Message - Details

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 820

• Message text: Value "&" cannot be restricted

What causes this issue?

You selected value '&V1&', which cannot be restricted. Only intervals
can be restricted.

System Response

The function is ignored.

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 C1820 - Value "&" cannot be restricted ?

  The SAP error message C1820, which states "Value '&' cannot be restricted," typically occurs in the context of data selection or filtering in SAP systems, particularly when working with selection screens or queries. This error indicates that the value you are trying to use for filtering or selection is not valid or cannot be processed as expected.
  Causes:
  
  Invalid Value: The value you are trying to restrict may not exist in the database or is not valid for the field you are working with.
  Data Type Mismatch: The value may not match the expected data type for the field (e.g., trying to restrict a numeric field with a string value).
  Field Characteristics: The field may have specific characteristics or constraints that prevent certain values from being used.
  Authorization Issues: Sometimes, the error can arise due to insufficient authorizations to access certain values or data.
  Custom Code or Enhancements: If there are custom programs or enhancements in place, they may be causing unexpected behavior.
  
  Solutions:
  
  Check the Value: Verify that the value you are trying to restrict is valid and exists in the database. You can do this by checking the relevant table or using transaction codes like SE11 (Data Dictionary) to look up the field.
  Data Type Verification: Ensure that the value you are using matches the expected data type for the field. If the field is numeric, make sure you are not using a string or special characters.
  Field Properties: Review the properties of the field in the data dictionary to understand any restrictions or characteristics that may apply.
  Authorization Check: Ensure that you have the necessary authorizations to access the data you are trying to filter. You may need to consult with your SAP security team.
  Debugging: If the error occurs in a custom program, consider debugging the code to identify where the issue arises. Look for any logic that may be incorrectly handling the value.
  Consult Documentation: Check SAP notes or documentation related to the specific transaction or program you are using for any known issues or updates.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), and SE37 (Function Module) to investigate the underlying data structures and logic.
  Community Forums: Consider checking SAP Community forums or other online resources where similar issues may have been discussed.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.