How To Fix W#550 - Qty in main item &1 does not equal the sum of the subitems

SAP Error Message - Details

• Message type: E = Error

• Message class: W# -

• Message number: 550

• Message text: Qty in main item &1 does not equal the sum of the subitems

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message W#550 - Qty in main item &1 does not equal the sum of the subitems ?

  The SAP error message W#550 indicates a discrepancy between the quantity of a main item and the sum of its subitems in a bill of materials (BOM) or a similar structure. This error typically arises in scenarios where the system expects the total quantity of the main item to equal the total quantity of all its associated subitems, but it finds that they do not match.
  Cause:
  
  Data Entry Error: The quantities for the main item or subitems may have been entered incorrectly.
  Changes in BOM: If the BOM was modified (e.g., adding or removing subitems) without adjusting the main item's quantity accordingly, this error can occur.
  Inconsistent Data: There may be inconsistencies in the data due to manual changes or updates that were not properly reflected across all related items.
  Configuration Issues: Incorrect configuration in the material master or BOM settings can lead to this error.
  
  Solution:
  
  Verify Quantities: Check the quantities of both the main item and its subitems. Ensure that the sum of the subitems matches the quantity of the main item.
  Adjust BOM: If there are discrepancies, adjust the BOM to ensure that the quantities are consistent. This may involve adding, removing, or changing the quantities of subitems.
  Recheck Data Entry: Review the data entry process to ensure that all quantities are entered correctly and consistently.
  Use Transaction Codes: Utilize relevant transaction codes (like CS02 for changing BOM) to make necessary adjustments.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling BOM discrepancies.
  Run Consistency Checks: If available, run consistency checks or reports in SAP to identify and rectify any discrepancies in BOM structures.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like CS01 (Create BOM), CS02 (Change BOM), and CS03 (Display BOM) for managing BOMs.
  Material Master: Ensure that the material master data is correctly maintained, as it can affect BOM structures.
  SAP Notes: Check SAP Notes for any known issues or patches related to BOM discrepancies.
  User Roles: Ensure that users have the appropriate roles and permissions to make changes to BOMs and material data.
  
  By following these steps, you should be able to resolve the W#550 error and ensure that the quantities in your BOM are consistent and accurate.