How To Fix BK508 - The document is not consistent and cannot be posted

SAP Error Message - Details

• Message type: E = Error

• Message class: BK - Create, Display, Reverse Controlling Document

• Message number: 508

• Message text: The document is not consistent and cannot be posted

What causes this issue?

The CO document that was generated from the document items you entered
is not consistent.

System Response

The document is not posted.

How to fix this error?

Try to post the document again.
(The inconsistency could be caused by a change to a rate of exchange
made while you were posting the data. If you repeat the transaction,
the system uses the new exchange rate for all document items and the
document is now consistent.)

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BK508 - The document is not consistent and cannot be posted ?

  The SAP error message BK508, which states "The document is not consistent and cannot be posted," typically indicates that there is an inconsistency in the accounting document that prevents it from being posted. This can occur for various reasons, and understanding the cause is essential for resolving the issue.
  Causes of BK508 Error
  
  
  Missing or Incorrect Account Assignment: One or more line items in the document may have missing or incorrect account assignments, such as a missing cost center, profit center, or internal order.
  
  
  Currency Issues: There may be inconsistencies in currency conversion or the use of different currencies in the document.
  
  
  Document Type Issues: The document type used may not be compatible with the transaction being processed.
  
  
  Posting Period Issues: The posting period may be closed or not open for the transaction date.
  
  
  Inconsistent Line Items: The line items may not balance, meaning that the total debits do not equal the total credits.
  
  
  Missing Tax Information: If the document involves tax, missing or incorrect tax codes can lead to inconsistencies.
  
  
  Validation Rules: Custom validation rules or checks may be triggered, causing the document to be flagged as inconsistent.
  
  
  Solutions to BK508 Error
  
  
  Review Line Items: Check each line item in the document for missing or incorrect account assignments. Ensure that all required fields are filled out correctly.
  
  
  Check Currency Settings: Verify that the currency settings are consistent across all line items. Ensure that the document currency matches the local currency if applicable.
  
  
  Validate Document Type: Ensure that the document type used is appropriate for the transaction. If necessary, change the document type.
  
  
  Check Posting Period: Confirm that the posting period is open for the date of the transaction. If it is closed, you may need to open it or post the document in a different period.
  
  
  Ensure Balancing: Make sure that the total debits equal the total credits. If they do not, adjust the line items accordingly.
  
  
  Review Tax Information: If applicable, check that all tax codes are correctly assigned and that the tax amounts are calculated properly.
  
  
  Consult with IT or SAP Support: If the issue persists, it may be necessary to consult with your IT department or SAP support for further investigation, especially if custom validations are involved.
  
  
  Related Information
  
  Transaction Codes: You can use transaction codes like FB50 (G/L Account Document Entry) or FB01 (Post Document) to review and edit the document.
  Error Logs: Check the error logs for more detailed information about the inconsistency.
  SAP Notes: Look for relevant SAP Notes that may address specific issues related to the BK508 error.
  User Documentation: Refer to SAP user documentation for guidelines on posting documents and handling errors.
  
  By systematically checking these areas, you should be able to identify and resolve the inconsistency causing the BK508 error.