How To Fix WEBFI_MASTER306 - Bank details with bank type & already exist

SAP Error Message - Details

• Message type: E = Error

• Message class: WEBFI_MASTER - Web Financials: Business Partner Master Data

• Message number: 306

• Message text: Bank details with bank type & already exist

Self-Explanatory Message

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• What is the cause and solution for SAP error message WEBFI_MASTER306 - Bank details with bank type & already exist ?

  SAP Error Message:
  WEBFI_MASTER306 Bank details with bank type & already exist
  
  
  Cause:
  This error occurs when you try to create or add bank details for a vendor or customer in SAP, and the system detects that bank details with the same bank type already exist for that business partner. In SAP, each bank type (e.g., house bank, vendor bank, customer bank) must be unique per business partner. The system prevents duplicate entries to maintain data consistency.
  
  Explanation:
  
  Bank Type: This is a classification of bank details, such as:
  1 = House Bank
  2 = Vendor Bank
  3 = Customer Bank
  etc.
  
  
  When you add bank details, SAP checks if the bank type already exists for that partner.
  If a bank detail with the same bank type is already maintained, SAP throws this error to avoid duplicates.
  
  
  
  Solution:
  
  
  Check Existing Bank Details:
  
  Go to the vendor/customer master data (transaction codes like FK03 for vendor display, FD03 for customer display).
  Navigate to the bank details tab.
  Verify