How To Fix APPL_MM_IV_MODEL045 - Automatic tax calculation is not supported.

SAP Error Message - Details

• Message type: E = Error

• Message class: APPL_MM_IV_MODEL -

• Message number: 045

• Message text: Automatic tax calculation is not supported.

Self-Explanatory Message

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.

What else can you do?

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message APPL_MM_IV_MODEL045 - Automatic tax calculation is not supported. ?

  The SAP error message APPL_MM_IV_MODEL045 indicates that automatic tax calculation is not supported in the context of the transaction or process you are trying to execute. This error typically arises in the Materials Management (MM) module, particularly during invoice verification or when processing purchase orders.
  Causes:
  
  Tax Configuration: The tax calculation settings in the system may not be properly configured. This can include missing tax codes or incorrect settings in the tax calculation procedure.
  Document Type: The document type being used may not support automatic tax calculation. Certain document types may require manual tax entry.
  Country-Specific Settings: The error may occur if the country-specific tax settings are not correctly defined in the system.
  Transaction Type: The transaction type being used may not be compatible with automatic tax calculation.
  Customizations: Custom developments or enhancements in the system may interfere with the standard tax calculation process.
  
  Solutions:
  
  
  Check Tax Configuration:
  
  Go to the transaction code OBYZ to review the tax codes and ensure they are correctly defined.
  Verify that the tax calculation procedure is correctly assigned to the relevant country and that the necessary tax codes are active.
  
  
  
  Review Document Type Settings:
  
  Check the configuration of the document type being used (e.g., invoice, purchase order) to ensure it supports automatic tax calculation.
  You can review this in the configuration settings under Materials Management > Purchasing > Purchase Order > Define Document Types.
  
  
  
  Country-Specific Settings:
  
  Ensure that the country-specific settings for tax calculation are correctly configured. This can be checked in the configuration under Financial Accounting > Financial Accounting Global Settings > Tax on Sales/Purchases > Basic Settings.
  
  
  
  Manual Tax Entry:
  
  If automatic tax calculation is not supported for the specific document type or transaction, consider entering the tax manually as a temporary workaround.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to tax calculation for your specific version of SAP, as there may be known issues or additional configuration steps required.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above configurations, consider reaching out to SAP support for further assistance. They may provide patches or additional guidance based on your specific system setup.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ME21N (Create Purchase Order), MIRO (Enter Incoming Invoice), and OBYZ (Maintain Tax Codes).
  SAP Notes: Search for SAP Notes related to tax calculation issues in the SAP Support Portal, as they may provide specific fixes or recommendations.
  User Exits and BAdIs: If there are custom developments in your system, check for any user exits or BAdIs that might affect tax calculation.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.