How To Fix M8636 - System calculates total qty and total amount from accnt assignment lines

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 636

• Message text: System calculates total qty and total amount from accnt assignment lines

You have changed quantities or amounts in the account assignment lines.
In this case, the system calculates the values of the total quantity
and total amount from the values entered.
Note
It is possible that you have entered a total quantity that is different
from the calculated total of the quantities entered in the account
assignment items. The system overwrites the total quantity with the
values it has calculated from the account assignment lines. The
behavior is the same when determining the amounts.
You can customize this message. You can also switch the message off, as
required.

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message M8636 - System calculates total qty and total amount from accnt assignment lines ?

  The SAP error message M8636, which states "System calculates total qty and total amount from account assignment lines," typically occurs in the context of inventory management or material movements. This error indicates that there is a discrepancy between the total quantity and total amount calculated from the account assignment lines in a transaction.
  Cause:
  
  Data Entry Errors: Incorrect or inconsistent data entry in the account assignment lines can lead to mismatches in total quantities and amounts.
  Configuration Issues: Incorrect configuration in the material master or account assignment settings can cause discrepancies.
  Incomplete Transactions: If a transaction is not fully completed or if there are missing account assignment lines, it can lead to this error.
  Currency Conversion Issues: If there are different currencies involved and the conversion rates are not set correctly, it can lead to mismatches in amounts.
  Posting Period Issues: If the posting period is closed or not open for the transaction, it may lead to errors in calculations.
  
  Solution:
  
  Check Account Assignment Lines: Review the account assignment lines for the transaction to ensure that all entries are correct and complete. Make sure that the quantities and amounts are consistent.
  Verify Configuration: Check the configuration settings in the material master and account assignment settings to ensure they are set up correctly.
  Complete Transactions: Ensure that all necessary account assignment lines are included and that the transaction is fully completed.
  Currency Settings: If applicable, verify that the currency settings and conversion rates are correct.
  Open Posting Period: Ensure that the posting period for the transaction is open. If it is closed, you may need to open it or post the transaction in a different period.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the error message and the context in which it occurs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MB1A, MB1B, or MIGO, which are commonly used for material movements and inventory management.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide specific solutions or workarounds.
  User Forums: Engage with SAP user forums or communities where similar issues may have been discussed, and solutions shared by other users.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant who can provide deeper insights into the specific configuration and data in your SAP environment.