How To Fix WRF_APC103 - Update of units of measure failed

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_APC - Messages for Operational Assortment Planning and Control

• Message number: 103

• Message text: Update of units of measure failed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_APC103 - Update of units of measure failed ?

  Certainly! Here's a detailed explanation for the SAP error message WRF_APC103: Update of units of measure failed:
  
  Error Message
  WRF_APC103: Update of units of measure failed
  
  Cause
  This error typically occurs during the update or posting process in SAP when the system tries to update or convert units of measure (UoM) but encounters an inconsistency or missing data. Common causes include:
  
  Missing or incorrect unit of measure configuration: The unit of measure involved in the transaction is not defined or incorrectly maintained in the system.
  Inconsistent unit of measure conversion factors: The system cannot convert between units because the conversion factors are missing or incorrect.
  Data inconsistencies in master data: For example, material master records or batch master records have inconsistent or incomplete UoM data.
  Authorization issues: The user or process does not have the necessary authorization to update units of measure.
  Custom code or user exits: Custom enhancements or user exits that manipulate UoM data may cause failures if not properly handled.
  
  
  Solution
  To resolve the WRF_APC103 error, follow these steps:
  
  
  Check Unit of Measure Configuration:
  
  Go to transaction CUNI (Units of Measure) and verify that the units involved in the transaction exist and are correctly defined.
  Check the conversion factors between units of measure using CUNI or CUNI_CONV.
  
  
  
  Verify Material Master Data:
  
  Use transaction MM03 to check the material master.
  Ensure that the base unit of measure and alternative units are correctly maintained.
  Check if the units used in the transaction are consistent with the material master.
  
  
  
  Check Batch or Other Master Data:
  
  If batches are involved, verify batch master data for correct UoM settings.
  
  
  
  Review Custom Code or User Exits:
  
  If there are any custom developments or user exits related to unit of measure updates, debug or review them to ensure they handle UoM updates correctly.
  
  
  
  Check Authorizations:
  
  Verify that the user or process has the necessary authorizations to update units of measure.
  
  
  
  Reprocess the Transaction:
  
  After correcting the data or configuration, try to reprocess or repost the transaction.
  
  
  
  SAP Notes and Support:
  
  Search for relevant SAP Notes using the message number or keywords.
  If the problem persists, consider raising a support ticket with SAP, providing detailed logs and screenshots.
  
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  CUNI – Units of Measure maintenance
  MM03 – Display Material Master
  MB51 / MB1A / MB1B / MB1C – Material document transactions (for checking postings)
  
  
  
  SAP Modules:
  
  This error is commonly seen in SAP MM (Materials Management), SAP SD (Sales and Distribution), or SAP PP (Production Planning) where unit of measure conversions are frequent.
  
  
  
  SAP Notes:
  
  Check SAP Support Portal for notes related to WRF_APC103 or unit of measure update issues.
  
  
  
  
  If you provide more context (e.g., transaction where the error occurs, module, or process), I can help tailor the solution further.