How To Fix VN028 - Enter a telefax number

SAP Error Message - Details

• Message type: E = Error

• Message class: VN - Nachrichtensteuerung

• Message number: 028

• Message text: Enter a telefax number

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 VN028 - Enter a telefax number ?

  SAP Error Message:
  
  VN028 - Enter a telefax number
  
  Cause:
  This error occurs when the system expects a telefax number to be entered in a vendor master record or a related transaction, but the field is left blank. The system validation rules or configuration require that a telefax number must be maintained for the vendor or business partner.
  
  When does it occur?
  
  During vendor master data creation or change (transaction codes like XK01, XK02, FK01, FK02).
  When maintaining communication data for a vendor or business partner.
  Possibly during certain purchasing or invoice processing steps if the system checks for complete vendor contact details.
  
  
  Solution:
  
  
  Enter a valid telefax number in the required field:
  
  Go to the vendor master data (e.g., XK02).
  Navigate to the Communication tab or the relevant section where telefax number is maintained.
  Enter the vendor’s telefax number in the appropriate field.
  Save the changes.
  
  
  
  Check configuration if telefax number is mandatory:
  
  If the telefax number is not always required, check the vendor master data field selection or screen layout configuration.
  Use transaction OMSF or OBA5 to check field selection groups for vendor master data.
  Adjust the field status group to make the telefax number optional if appropriate.
  
  
  
  If telefax is not used:
  
  Consider entering a placeholder number if the system requires it and no real telefax number exists.
  Alternatively, consult with your SAP Basis or functional team to adjust the validation logic or field status.
  
  
  
  
  Related Information:
  
  Field in Vendor Master: The telefax number is usually maintained under the Communication tab in vendor master data.
  Field name: Typically, the telefax number corresponds to the field TELFAX in the vendor master.
  Field status groups: Control whether the telefax number is optional, mandatory, or suppressed.
  Transaction codes: XK01 (Create Vendor), XK02 (Change Vendor), FK01, FK02, BP (Business Partner).
  Customizing path:
  
  Logistics ? Materials Management ? Purchasing ? Vendor Master ? Define Field Selection for Vendor Master (OMSF)
  
  
  Summary:
  
  Cause: Telefax number missing where mandatory.
  Solution: Enter a valid telefax number or adjust field status to make it optional.
  Check: Vendor master data communication tab and field status configuration.
  
  
  If you need further help, please provide the transaction code and context where the error occurs.