Message type: E = Error
Message class:  NAA - Subsequent settlement (Purchasing) 
Message number: 091
Message text: No gross weight is available for item &2 of settlement docuemnt &1
No gross weight is available for item &V2& of settlement document &V1&.
However, the condition record for condition type &V3& refers to the
gross weight in relation to the scale and/or condition basis (reference
magnitude and/or calculation rule).
As a result, the document item is not relevant for the condition record.
No update is carried out, as the business volume data is incomplete.
If you want an update to be carried out, you must enter the gross weight
for the item.
You can maintain the gross weight in the document item or in the
material master.
The condition record has (internal) number &V4&.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message NAA091 indicates that there is no gross weight available for a specific item in a settlement document. This error typically arises in the context of logistics and materials management, particularly when dealing with settlement documents related to transportation or shipping.
Cause: Missing Data: The most common cause of this error is that the gross weight for the item in question has not been maintained in the material master or the relevant document. Incorrect Configuration: There may be issues with the configuration of the material or the document type that is being processed. Incomplete Document: The settlement document may not have been fully processed or may be missing required information. Data Transfer Issues: If data is being transferred from another system or module, there may have been an error in the data transfer process.
Solution: Check Material Master: Go to the material master record for the item in question and ensure that the gross
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