How To Fix ME426 - Enter just one "X"

SAP Error Message - Details

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 426

• Message text: Enter just one "X"

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ME426 - Enter just one "X" ?

  The SAP error message ME426 ("Enter just one 'X'") typically occurs in the context of purchasing documents, such as purchase requisitions or purchase orders, when the system expects a single selection for a specific field but finds multiple entries or an incorrect input.
  Cause:
  The error is usually triggered when:
  
  A user attempts to select multiple options in a field that only allows a single selection (e.g., a checkbox).
  The input does not conform to the expected format or criteria defined in the system.
  There may be a misunderstanding of the field's purpose or the expected input.
  
  Solution:
  To resolve the ME426 error, follow these steps:
  
  
  Review the Input Fields: Check the fields in the transaction where the error occurred. Ensure that you are only selecting one option where required. For example, if there is a checkbox, make sure only one is checked.
  
  
  Clear Unnecessary Selections: If you have inadvertently selected multiple checkboxes or options, deselect the extras and leave only one selected.
  
  
  Consult Documentation: Refer to the SAP documentation or help files related to the specific transaction you are working on. This can provide insights into the expected inputs.
  
  
  Check User Authorizations: Sometimes, the error can be related to user roles and authorizations. Ensure that you have the necessary permissions to perform the action you are attempting.
  
  
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or system administrator for assistance. They may have additional insights or access to logs that can help diagnose the problem.
  
  
  Related Information:
  
  Transaction Codes: The error can occur in various transaction codes related to purchasing, such as ME51N (Create Purchase Requisition), ME21N (Create Purchase Order), etc.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  User Training: If this error is common among users, consider providing training or documentation to help them understand the input requirements better.
  
  By following these steps, you should be able to resolve the ME426 error and proceed with your purchasing activities in SAP.