Message type: E = Error
Message class:  IDFIVAT - FI Localization 
Message number: 045
Message text: External Data upload has been finished with error
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 IDFIVAT045, which states "External Data upload has been finished with error," typically occurs during the process of uploading external data into the SAP system, particularly in the context of VAT (Value Added Tax) data or other financial data uploads. This error can arise due to various reasons, and addressing it usually involves several steps. Possible Causes: Data Format Issues: The data being uploaded may not conform to the expected format or structure. This could include incorrect data types, missing mandatory fields, or invalid values. Mapping Errors: If the data is being mapped to specific fields in SAP, any discrepancies in the mapping configuration can lead to errors. Validation Errors: The data may fail validation checks defined in the SAP system, such as business rules or data integrity constraints. Authorization Issues: The user performing the upload may not have the necessary permissions to execute the upload process. Technical Issues: There could be underlying
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
IDFIVAT044 External data has been uploaded successfully (&1 records)
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
IDFIVAT043 Reversed document '&1' has been removed from control statement
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
IDFIVAT046 Reversal document '&1' has been removed from statement (orig. doc '&2')
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
IDFIVAT047 External system does not contain any new data
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.