How To Fix WAB048 - For document splits, only one FI doc type may use external no. assignment

WAB048 - Overview

• Message type: E = Error

• Message class: WAB - Messages Settlement Management

• Message number: 048

• Message text: For document splits, only one FI doc type may use external no. assignment

Self-Explanatory Message

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• What is the cause and solution for SAP error message WAB048 - For document splits, only one FI doc type may use external no. assignment ?

  SAP Error Message:
  WAB048 – For document splits, only one FI doc type may use external no. assignment.
  
  
  Cause:
  This error occurs during document splitting in Financial Accounting (FI) when more than one FI document type is configured to use external number assignment within the same document splitting scenario. SAP requires that only one FI document type can have external number assignment active to avoid conflicts in document numbering and ensure consistency in document processing.
  
  Explanation:
  
  Document Splitting is a functionality in SAP FI that allows the system to split accounting documents according to certain characteristics (e.g., segment, profit center).
  When document splitting is active, the system expects a consistent and unique numbering approach for FI documents.
  If multiple FI document types are set to use external number assignment (i.e., the document number is assigned externally, not by the system), SAP cannot guarantee unique and consistent document numbers across splits.
  Hence, SAP restricts the configuration to only one