How To Fix >0421 - Enter a valid &1

>0421 - Overview

• Message type: E = Error

• Message class: >0 - General Basis texts

• Message number: 421

• Message text: Enter a valid &1

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 >0421 - Enter a valid &1 ?

  The SAP error message 0421: "Enter a valid &1" typically indicates that the user has entered an invalid value in a field that requires a specific type of input. The placeholder &1 in the message will be replaced with the name of the field or the type of data expected.
  
  Cause:
  
  
  Invalid Input: The most common cause is that the user has entered a value that does not meet the criteria for that field. This could be due to:
  
  Typographical errors.
  Entering a value that is not in the allowed list (e.g., entering a non-existent material number).
  Using an incorrect format (e.g., entering letters in a numeric field).
  
  
  
  Data Not Available: The value entered may not exist in the database or may have been deleted or archived.
  
  
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain data, leading to this error.
  
  
  
  Solution:
  
  
  Check Input: Verify the value you are entering. Ensure that it is