Message type: E = Error
Message class:  WAO_TRANSFER_PRICES - Messages for the Transfer Prices Web Add-On 
Message number: 013
Message text: Unit &1 does not match to material &2. It has been changed to &3
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The SAP error message WAO_TRANSFER_PRICES013 indicates that there is a mismatch between the unit of measure (UoM) for a specific material in a transfer pricing scenario. The message typically states that the unit of measure for a certain unit (e.g., a material or product) does not match the expected unit of measure, and as a result, it has been changed to a different unit.
Cause: Unit of Measure Mismatch: The primary cause of this error is that the unit of measure defined for the material in the system does not match the unit of measure that is being used in the transaction or document.
Configuration Issues: There may be configuration issues in the material master data or in the pricing procedure that lead to this mismatch. Data Entry Errors: Incorrect data entry during the creation of the material or during the transaction processing can lead to this error. Changes in Material Master: If the unit
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