How To Fix E9406 - Tax number of category &1 is still used in contract account &2

SAP Error Message - Details

• Message type: E = Error

• Message class: E9 - General IS-U Error Messages

• Message number: 406

• Message text: Tax number of category &1 is still used in contract account &2

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 E9406 - Tax number of category &1 is still used in contract account &2 ?

  The SAP error message E9406 indicates that a tax number of a specific category is still being used in a contract account, which prevents the system from allowing certain operations, such as deleting or changing the tax number. This error typically arises in the context of financial transactions, particularly in accounts receivable or accounts payable modules.
  Cause:
  The error occurs when:
  
  You attempt to delete or change a tax number that is currently assigned to a contract account.
  The tax number is still linked to open transactions or documents in the system.
  The tax number is part of a configuration that is still active in the system.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Usage: Check the contract account mentioned in the error message to see where the tax number is being used. You can do this by:
  
  Reviewing open invoices, payments, or any other transactions associated with the contract account.
  Using transaction codes like FBL1N (Vendor Line Item Display) or FBL5N (Customer Line Item Display) to find related documents.
  
  
  
  Clear Transactions: If there are open transactions that are using the tax number, you may need to:
  
  Clear or settle those transactions.
  Change the tax number in the relevant documents if applicable.
  
  
  
  Change Tax Number: If you need to change the tax number:
  
  Ensure that no transactions are currently using the tax number.
  If necessary, update the tax number in the contract account settings.
  
  
  
  Consult Configuration: If the tax number is part of a configuration (like tax codes or tax categories), ensure that it is not being referenced in any active settings.
  
  
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting the SAP Help Portal for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing tax numbers and contract accounts, such as OB40 (Define Tax Codes) and OBCO (Define Tax Categories).
  Documentation: Review SAP documentation related to tax management and contract accounts for best practices and guidelines.
  User Roles: Ensure that you have the necessary permissions to make changes to tax numbers and contract accounts.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.