How To Fix SV840 - Do not use the characters '_' and '%' here.

SAP Error Message - Details

• Message type: E = Error

• Message class: SV - View Maintenance: Customize Messages

• Message number: 840

• Message text: Do not use the characters '_' and '%' here.

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SV840 - Do not use the characters '_' and '%' here. ?

  The SAP error message SV840, which states "Do not use the characters '' and '%' here," typically occurs when you are trying to input a value in a field that does not allow certain special characters, specifically the underscore (`) and percentage (%`) symbols. This restriction is often in place to ensure data integrity and to prevent issues with data processing or querying.
  Cause:
  
  Invalid Characters: The error is triggered when the user attempts to enter a value that includes the characters _ or % in a field that does not accept them.
  Field Restrictions: Certain fields in SAP are designed to accept only specific types of characters (e.g., alphanumeric characters) to maintain consistency and avoid errors in processing.
  
  Solution:
  
  Remove Invalid Characters: Check the input value and remove any occurrences of _ and %. Replace them with valid characters that are acceptable for the specific field.
  Consult Documentation: Refer to the SAP documentation or field help to understand the valid input formats for the specific field you are working with.
  Validation: Implement validation checks in your input forms or processes to ensure that users do not enter invalid characters in the future.
  
  Related Information:
  
  Field Type: Understanding the type of field you are working with (e.g., text field, numeric field) can help you determine what characters are allowed.
  SAP Notes: Check SAP Notes or the SAP Community for any updates or specific guidance related to this error message.
  Testing: If you are developing or customizing SAP applications, ensure that your code properly handles user input and validates it before processing.
  
  If you continue to encounter issues or if the error message appears in a specific context (e.g., during a particular transaction or report), it may be helpful to provide additional details for more targeted assistance.