How To Fix VW689 - Weight not calculated correctly because handling unit has changed

SAP Error Message - Details

• Message type: E = Error

• Message class: VW - Shipment Processing Output

• Message number: 689

• Message text: Weight not calculated correctly because handling unit has changed

What causes this issue?

One or more handling units that belong to the deliveries were repacked
in a subsequent activity. This means that it is no longer possible to
ascertain which items from the delivery were in the handling unit.

System Response

The total weight of the delivery could no longer be calculated
correctly.
Therefore the total weight of the shipment cannot be calculated
correctly either.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VW689 - Weight not calculated correctly because handling unit has changed ?

  The SAP error message VW689, which states "Weight not calculated correctly because handling unit has changed," typically occurs in the context of handling units (HUs) in SAP's logistics and warehouse management modules. This error indicates that there is a discrepancy in the weight calculation for a handling unit due to changes made to the handling unit after it was initially created or processed.
  Cause:
  
  Change in Handling Unit: The handling unit may have been modified after the initial weight calculation. This could include adding or removing items, changing the configuration of the handling unit, or altering the weight of the items within the handling unit.
  Inconsistent Data: There may be inconsistencies in the data related to the handling unit, such as incorrect weight entries for the materials or the handling unit itself.
  System Configuration: The system may not be configured correctly to handle weight calculations for handling units, leading to errors when changes are made.
  
  Solution:
  
  Check Handling Unit Changes: Review the changes made to the handling unit. Ensure that any modifications are valid and that the weight of the items is correctly updated.
  Recalculate Weight: If the handling unit has changed, you may need to manually trigger a recalculation of the weight. This can often be done through the relevant transaction in SAP (e.g., using the handling unit management transaction).
  Verify Material Master Data: Check the material master data for the items in the handling unit to ensure that the weights are correctly defined. If there are discrepancies, update the material master records.
  Review Configuration Settings: Ensure that the configuration settings for handling units and weight calculations in SAP are correctly set up. This may involve checking the settings in the relevant customizing transactions.
  Use Transaction Codes: Utilize transaction codes such as HU02 (Change Handling Unit) or HU03 (Display Handling Unit) to investigate and correct any issues with the handling unit.
  
  Related Information:
  
  Handling Units (HUs): In SAP, handling units are used to manage the physical packaging of materials. They can represent pallets, boxes, or any other form of packaging that contains materials.
  Weight Calculation: SAP calculates the weight of handling units based on the weight of the materials contained within them. This is important for logistics, shipping, and inventory management.
  SAP Notes: Check for any relevant SAP Notes or documentation that may address specific issues related to handling units and weight calculations. SAP Notes can provide patches or updates that resolve known issues.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP's official documentation for further assistance.