How To Fix VR303 - Blocking key & has incorrect structure

VR303 - Overview

• Message type: E = Error

• Message class: VR - Output for SD Reporting

• Message number: 303

• Message text: Blocking key & has incorrect structure

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 VR303 - Blocking key & has incorrect structure ?

  SAP Error Message:
  VR303 - Blocking key & has incorrect structure
  
  
  Cause:
  The error message VR303 occurs when the blocking key entered in a transaction related to vendor master data (such as in transaction FK02, XK02, or during invoice verification) does not conform to the expected format or structure defined in the system.
  
  Blocking keys are used in SAP to block or unblock vendors or specific vendor data at different organizational levels (company code, purchasing organization, etc.).
  Each blocking key has a predefined structure (length, allowed characters, etc.) configured in the system.
  If the blocking key entered does not match this structure (e.g., wrong length, invalid characters), SAP throws the VR303 error.
  
  
  Typical Scenarios:
  
  Entering a blocking key manually that is not defined or incorrectly formatted.
  Customizing or configuration changes where blocking keys are defined incorrectly.
  Data migration or upload where blocking keys are not validated properly.
  
  
  
  Solution:
  
  
  Check the Blocking Key Format:
  
  Verify the blocking key you are trying to enter.
  Ensure it