How To Fix WS671 - Tax flags are missing on item level (document &1 cannot save)

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 671

• Message text: Tax flags are missing on item level (document &1 cannot save)

Self-Explanatory Message

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• What is the cause and solution for SAP error message WS671 - Tax flags are missing on item level (document &1 cannot save) ?

  SAP Error Message:
  
  WS671 - Tax flags are missing on item level (document &1 cannot save)
  
  Cause:
  This error occurs when the system tries to save a document (such as a sales order, billing document, or purchase order), but the tax-related flags or tax classification data at the item level are missing or incomplete. The tax determination process requires certain tax flags or tax codes to be present on each item to correctly calculate taxes. If these are not maintained or are missing, the system cannot proceed with saving the document.
  Common scenarios causing this error include:
  
  Missing or incomplete tax classification on the material master or customer/vendor master.
  Incorrect or missing tax codes in the pricing or condition records.
  Customizing issues in tax determination procedure.
  Incomplete or missing tax-related data in the item details during document creation.
  
  
  Solution:
  
  
  Check Tax Classification:
  
  Verify that the material master has the correct tax classification maintained (e.g., in MM02 under Sales: Sales Org. 2 or Basic Data).
  Check the customer/vendor master data for correct tax classification.
  
  
  
  Verify Tax Codes:
  
  Ensure that the tax codes are correctly assigned in the pricing conditions or item details.
  Check if the tax codes are valid for the country and transaction type.
  
  
  
  Review Tax Determination Procedure:
  
  Go to SPRO ? Sales and Distribution ? Basic Functions ? Tax on Sales/Purchases ? Basic Settings ? Check Procedure.
  Ensure that the tax procedure is correctly assigned to the sales area and country.
  Verify that the tax condition types are correctly maintained.
  
  
  
  Maintain Tax Flags on Item Level:
  
  When creating or editing the document, ensure that tax flags or tax codes are entered at the item level.
  If using custom developments or user exits, check if tax flags are being set properly.
  
  
  
  Recreate or Correct the Document:
  
  Sometimes, deleting and recreating the document with correct tax data can resolve the issue.
  Alternatively, use transaction codes like VF02 (billing document change) or VA02 (sales order change) to add missing tax data.
  
  
  
  Check OSS Notes:
  
  Search SAP OSS Notes for WS671 or related tax flag issues for your SAP version.
  Apply any relevant notes or patches.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  VA01/VA02 - Create/Change Sales Order
  VF01/VF02 - Create/Change Billing Document
  ME21N/ME22N - Create/Change Purchase Order
  MM02 - Change Material Master
  XD02/VD02 - Change Customer Master
  
  
  
  SAP IMG Path for Tax Configuration:
  
  Sales and Distribution ? Basic Functions ? Tax on Sales/Purchases ? Basic Settings ? Check Procedure
  
  
  
  SAP Notes and KBAs:
  
  Search for SAP Notes related to WS671 or tax flags missing errors.
  Example Note: 000123456 (hypothetical) - "Error WS671: Tax flags missing on item level"
  
  
  
  Debugging:
  
  If the issue persists, debugging the tax determination logic or user exits (e.g., USEREXIT_PRICING_PREPARE_TKOMP) may help identify missing tax flag assignments.
  
  
  
  
  Summary:
  The WS671 error indicates missing tax flags at the item level, preventing document saving. The fix involves ensuring proper tax classification and tax code assignment on materials, customers/vendors, and item details, along with correct tax procedure configuration. Checking and maintaining these tax-related data points resolves the issue.