Message type: E = Error
Message class:  OAA_VENDOR - Message Class for Vendor Integration 
Message number: 014
Message text: Error for unit conversion from &1 to &2
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
Unfortunately, there isn't any extra information in this error notice.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
The SAP error message OAA_VENDOR014 typically occurs in the context of asset accounting when there is an issue with unit conversion between different measurement units. This error indicates that the system is unable to convert a value from one unit of measure (UoM) to another, which can happen for various reasons.
Cause: Incompatible Units: The units of measure being used may not be compatible for conversion. For example, trying to convert between units that are not directly convertible (e.g., kilograms to liters without a defined conversion factor). Missing Conversion Factors: The conversion factors between the two units may not be defined in the system. SAP requires that a conversion factor be established for any unit conversion to take place. Incorrect Configuration: There may be issues with the configuration of the units of measure in the system, such as incorrect settings in the material master or unit of measure tables. Data Entry Errors: There could be
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
OAA_VENDOR013 No base unit found for article &1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
OAA_VENDOR012 ISO unit &1 is unknown
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
OAA_VENDOR015 Vendor &1 is unknown
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
OAA_VENDOR016 No material number found for given parameters
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.