How To Fix RW312 - Tax amount in G/L account items cannot be processed

SAP Error Message - Details

• Message type: E = Error

• Message class: RW - Interface to Accounting

• Message number: 312

• Message text: Tax amount in G/L account items cannot be processed

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With the direct input method you should not enter the taxes into the G/L
account items.

System Response

None of the tax amounts entered in field WMWST will be processed.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

You must enter the tax-relevant data into structure BBTAX.
You must also provide a BBTAX structure for every tax code defined for
a posting key. It is also possible to send a BBTAX structure for every
tax-relevant line item.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RW312 - Tax amount in G/L account items cannot be processed ?

  The SAP error message RW312, which states "Tax amount in G/L account items cannot be processed," typically occurs when there is an issue with the tax configuration or the way tax amounts are being handled in General Ledger (G/L) account postings. Here are some common causes, solutions, and related information for this error:
  Causes:
  
  Incorrect Tax Configuration: The tax codes or tax settings in the system may not be configured correctly, leading to issues when processing tax amounts.
  G/L Account Settings: The G/L account being used may not be set up to handle tax amounts. For example, it may not be marked as a tax-relevant account.
  Document Type Restrictions: The document type used for the transaction may not allow for tax amounts to be processed.
  Missing Tax Jurisdiction: If the tax jurisdiction is not defined or is incorrect, it can lead to issues with tax calculations.
  Posting Key Issues: The posting keys used in the transaction may not be appropriate for handling tax amounts.
  
  Solutions:
  
  
  Check Tax Configuration:
  
  Verify that the tax codes are correctly defined in the system.
  Ensure that the tax rates and tax categories are set up properly.
  
  
  
  Review G/L Account Settings:
  
  Go to the G/L account master data and check if the account is marked as a tax-relevant account.
  Ensure that the account is configured to allow tax postings.
  
  
  
  Examine Document Type:
  
  Check the document type being used for the transaction and ensure it allows for tax amounts.
  If necessary, create or modify a document type to accommodate tax postings.
  
  
  
  Validate Tax Jurisdiction:
  
  Ensure that the tax jurisdiction is correctly defined and linked to the relevant tax codes.
  Check if the jurisdiction is applicable for the transaction being processed.
  
  
  
  Review Posting Keys:
  
  Check the posting keys used in the transaction to ensure they are appropriate for tax postings.
  If needed, adjust the posting keys to allow for tax amounts.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes that may address specific issues related to the RW312 error. SAP frequently updates its knowledge base with solutions for known issues.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like OB40 (for posting keys), OBYZ (for tax codes), and FS00 (for G/L account master data) to review and adjust settings.
  Documentation: Refer to SAP documentation or help files for detailed guidance on tax configuration and G/L account settings.
  Testing: After making changes, perform test transactions to ensure that the error is resolved and that tax amounts are processed correctly.
  
  If the issue persists after checking these areas, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in financial accounting within SAP.