How To Fix FS886 - Error occured when assigning document number of external tax interface

SAP Error Message - Details

• Message type: E = Error

• Message class: FS - Messages from Tax Routines / Prenumbered Checks

• Message number: 886

• Message text: Error occured when assigning document number of external tax interface

What causes this issue?

The system could not create a number for the external tax document.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

The customizing for the number-range interval for the external tax
document is probably incomplete.
Please maintain the number-range interval '01' for the external tax
document. In IMG, select Financial Accounting --> Financial Accounting
Global Settings --> Tax on Sales/Purchases --> Basic Settings -->
External Tax Calculation --> Define Number Ranges for External Tax
Documents

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FS886 - Error occured when assigning document number of external tax interface ?

  The SAP error message FS886, which states "Error occurred when assigning document number of external tax interface," typically arises in the context of tax processing within SAP, particularly when integrating with external tax systems or interfaces. This error can occur during the posting of financial documents that involve tax calculations.
  Causes of FS886 Error
  
  
  Configuration Issues: The external tax interface may not be properly configured in the SAP system. This could include incorrect settings in the tax configuration or missing parameters.
  
  
  Document Number Assignment: The system may be unable to assign a document number for the tax document due to issues with number ranges or document type settings.
  
  
  External Tax System Issues: If you are using an external tax calculation service, there may be issues with the service itself, such as downtime or miscommunication between SAP and the external system.
  
  
  Data Inconsistencies: There may be inconsistencies in the data being sent to the external tax interface, such as missing or incorrect tax codes, which can lead to errors in processing.
  
  
  Authorization Issues: The user or process attempting to post the document may not have the necessary authorizations to access the external tax interface.
  
  
  Solutions to FS886 Error
  
  
  Check Configuration: Review the configuration settings for the external tax interface in SAP. Ensure that all necessary parameters are correctly set up.
  
  
  Verify Number Ranges: Check the number range settings for the document types involved. Ensure that the number ranges are correctly defined and that there are available numbers for assignment.
  
  
  Test External Tax Interface: If applicable, test the connection to the external tax system to ensure it is operational. Check for any error messages or logs in the external system that may provide more context.
  
  
  Review Data: Examine the data being sent to the external tax interface. Ensure that all required fields are populated correctly and that the tax codes are valid.
  
  
  Check Authorizations: Ensure that the user or process has the necessary authorizations to access and use the external tax interface.
  
  
  Consult Logs: Check the application logs (transaction SLG1) for more detailed error messages that may provide additional context for the issue.
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide patches or updates.
  
  
  Contact Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OB40 (for number range maintenance) and SLG1 (for application logs).
  Documentation: Review SAP documentation related to the external tax interface and tax configuration for your specific version of SAP.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to diagnose and resolve the FS886 error in your SAP system.