How To Fix W_CB181 - Internal nubmer &1 cannot be mapped to final numbers

SAP Error Message - Details

• Message type: E = Error

• Message class: W_CB -

• Message number: 181

• Message text: Internal nubmer &1 cannot be mapped to final numbers

Self-Explanatory Message

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• What is the cause and solution for SAP error message W_CB181 - Internal nubmer &1 cannot be mapped to final numbers ?

  SAP Error Message:
  
  W_CB181 Internal number &1 cannot be mapped to final numbers
  
  Cause:
  This warning message typically occurs in SAP when there is an issue with number mapping between internal and external (final) number ranges. Specifically, the system is trying to convert or map an internal number (usually a document number, material number, or similar) to its corresponding external or final number, but it fails because:
  
  The internal number does not exist in the number range mapping table.
  The number range object or interval is not properly maintained.
  The internal number is outside the defined number range intervals.
  There is inconsistency or missing configuration in number range assignments.
  The number range object is not correctly linked or activated for the relevant document or master data.
  
  This message is often seen in modules like MM (Material Management), FI (Financial Accounting), SD (Sales and Distribution), or CO (Controlling) when documents or master data are created or processed.
  
  Solution:
  
  
  Check Number Range Configuration:
  
  Go to the relevant number range maintenance transaction (e.g., SNRO or module-specific number range maintenance).
  Verify that the number range object related to the document or master data is correctly defined.
  Ensure that the internal number in question falls within the defined intervals.
  
  
  
  Verify Number Range Assignment:
  
  Check if the number range object is properly assigned to the relevant application or document type.
  For example, in FI, check number range intervals for document types in transaction FBN1.
  In MM, check number ranges for material master or purchase orders.
  
  
  
  Check for Missing or Incorrect Mapping:
  
  If the system uses internal and external number mapping tables, verify that the mapping exists.
  Use transaction SNRO to check the number range object and intervals.
  If necessary, recreate or adjust the mapping.
  
  
  
  Adjust or Extend Number Ranges:
  
  If the internal number is outside the current number range, extend the number range interval.
  Make sure the number range intervals do not overlap and are continuous.
  
  
  
  Check for Custom Code or User Exits:
  
  Sometimes, custom developments or user exits might interfere with number mapping.
  Review any custom logic that handles number assignment or mapping.
  
  
  
  Re-run the Process:
  
  After corrections, retry the transaction or process that triggered the warning.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SNRO - Number Range Objects maintenance
  FBN1 - Document Number Ranges for FI
  Module-specific number range transactions (e.g., OMH6 for MM, VN01 for SD)
  
  
  
  SAP Notes:
  
  Check SAP Notes related to number range issues for your specific module.
  Example: SAP Note 0000000 (replace with actual note number if known) for number range mapping issues.
  
  
  
  Documentation:
  
  SAP Help Portal documentation on Number Ranges and Number Range Objects.
  Module-specific configuration guides for number ranges.
  
  
  
  
  Summary:
  The warning W_CB181 Internal number &1 cannot be mapped to final numbers indicates a problem with number range mapping/configuration. The solution involves verifying and correcting the number range intervals and assignments to ensure the internal number can be properly mapped to a final (external) number.
  If you provide the module or context where this error occurs, I can give more precise instructions.