How To Fix VW231 - All dlvs in shipment & posted for GI, but some were already posted for GI

SAP Error Message - Details

• Message type: E = Error

• Message class: VW - Shipment Processing Output

• Message number: 231

• Message text: All dlvs in shipment & posted for GI, but some were already posted for GI

Goods issue has been posted for all deliveries for which goods issue
could be posted. However, there are some deliveries for which goods
issue has already been posted or which were not relevant for goods
issue.
In this case, the system issues an error message.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VW231 - All dlvs in shipment & posted for GI, but some were already posted for GI ?

  The SAP error message VW231 indicates that there is a discrepancy in the goods issue (GI) postings for deliveries associated with a shipment. Specifically, it means that all deliveries in the shipment have been posted for goods issue, but some of those deliveries were already posted for goods issue previously. This situation can arise in various scenarios, such as when trying to process a shipment that includes deliveries that have already been processed.
  
  Cause:
  
  Duplicate Goods Issue Posting: The most common cause of this error is that the goods issue for some deliveries has already been executed, and the system is trying to post it again.
  Incorrect Shipment Processing: The shipment may have been incorrectly processed, or there may be inconsistencies in the delivery status.
  Manual Changes: Manual changes to the delivery or shipment documents that do not align with the system's expected state can lead to this error.
  System 
  Configuration Issues: There may be