How To Fix W8001 - & is not a valid & & input value

SAP Error Message - Details

• Message type: E = Error

• Message class: W8 - Workflow: Expressions, data flow

• Message number: 001

• Message text: & is not a valid & & input value

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 W8001 - & is not a valid & & input value ?

  The SAP error message W8001 with the text pattern:
  & is not a valid & & input value
  typically indicates that a value entered in a field is not valid according to the expected data type, domain, or allowed values defined in the SAP system.
  
  Cause
  
  The user has entered a value in a field that does not conform to the expected format or allowed values.
  The field might have a domain or data element with a fixed set of allowed values (value range), and the input does not match any of these.
  The input might violate data type restrictions (e.g., entering alphabetic characters in a numeric field).
  The input might be outside the allowed length or character set.
  Sometimes, this error can occur if the input value is not consistent with the underlying business logic or validation rules.
  
  
  Explanation of the Message Components
  The message text uses placeholders (&) which are replaced at runtime with specific information. For example:
  <value> is not a valid <field name> <field description> input value
  
  The first & is the invalid input value.
  The second & is the field name or data element.
  The third & is the field description or additional context.
  
  
  Solution
  
  
  Check the Input Value:
  
  Verify that the value you entered is correct and matches the expected format.
  Ensure the value is within the allowed range or list of values.
  
  
  
  Check Field Domain or Data Element:
  
  Use transaction SE11 to look up the data element or domain of the field.
  Check the allowed values or value range defined for the domain.
  
  
  
  Use F4 Help:
  
  Use the F4 help (value help) on the field to see the list of valid entries.
  Select a value from the list instead of entering manually.
  
  
  
  Check for Custom Validations:
  
  Sometimes, custom code (user exits, BADIs, or validations) may restrict input values.
  Check with your SAP developer or functional consultant if custom validations exist.
  
  
  
  Correct Data Type:
  
  Make sure the input matches the data type (e.g., numeric, date, character).
  
  
  
  Check for Transport or System Issues:
  
  If the error occurs after a transport or system upgrade, verify that domain/value ranges are consistent.
  
  
  
  
  Related Information
  
  Transaction SE91: To look up the message W8001 and see the exact message text and parameters.
  Transaction SE11: To check the data element/domain of the field.
  F4 Help: To get valid input values.
  SAP Notes: Search SAP Support Portal for notes related to message W8001 for specific modules or scenarios.
  Common Modules: This message can appear in various modules (FI, MM, SD, etc.) wherever input validation is enforced.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  W8001 - <value> is not a valid <field> <description> input value
  
  
  Cause
  Invalid input value not matching domain/data element restrictions or allowed values
  
  
  Solution
  Verify input, use F4 help, check domain/value range, correct data type, check custom code
  
  
  Tools
  SE91 (message), SE11 (data element/domain), F4 help, SAP Notes
  
  
  
  
  If you provide the exact field or context where this error occurs, I can help you with more specific guidance.