How To Fix WRF_APC754 - External transportation chain changed / system recalculated the dateline

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 754

• Message text: External transportation chain changed / system recalculated the dateline

Self-Explanatory Message

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• What is the cause and solution for SAP error message WRF_APC754 - External transportation chain changed / system recalculated the dateline ?

  SAP Error Message:
  
  WRF_APC754 - External transportation chain changed / system recalculated the dateline
  
  Cause
  This message occurs in SAP Advanced Planning and Optimization (APO), specifically within the Supply Network Planning (SNP) or Production Planning and Detailed Scheduling (PP/DS) modules, when the system detects that the external transportation chain (i.e., the transportation lead times or routes defined outside the system or changed externally) has been modified. As a result, the system recalculates the dateline (the latest possible start date for production or procurement to meet a demand date) to reflect the updated transportation times.
  In other words, the transportation chain used for planning has changed (for example, due to changes in transit times, routes, or transportation modes), and the system automatically adjusts the dateline accordingly to ensure planning accuracy.
  
  Explanation
  
  External transportation chain: This refers to transportation data maintained outside the internal planning logic, often imported or integrated from external systems or master data.
  Dateline recalculation: The dateline is the critical date by which production or procurement must start to meet the demand date, considering all lead times including transportation. When transportation times change, the dateline must be recalculated to maintain feasible planning.
  
  
  Solution / How to Handle
  
  
  Review Transportation Chain Changes:
  
  Check the transportation lanes, lead times, and routes that have been changed or updated. Confirm that these changes are correct and intentional.
  
  
  Verify Master Data Consistency:
  
  Ensure that the transportation lanes and lead times in the system are consistent with the external data sources or agreements.
  
  
  Re-run Planning / SNP Heuristics:
  
  After confirming the transportation data, re-execute the planning run or heuristics to allow the system to recalculate the datelines and adjust planned orders accordingly.
  
  
  Communicate Changes:
  
  Inform relevant stakeholders (e.g., logistics, production planning) about the changes in transportation times and the impact on production or procurement schedules.
  
  
  Check Customizing Settings:
  
  If unexpected recalculations occur frequently, review the customizing settings for transportation lanes and dateline calculation in APO to ensure they align with business requirements.
  
  
  
  Related Information
  
  
  Transaction Codes:  
  
  /SAPAPO/SDP94 - SNP Planning Book  
  /SAPAPO/PPDS - PP/DS Planning  
  /SAPAPO/MC90 - SNP Heuristic
  
  
  
  Master Data:  
  
  Transportation Lanes (in APO)  
  Product Master Data (Lead Times)  
  Location Master Data
  
  
  
  SAP Notes / Documentation:  
  
  SAP Help Portal on SNP and PP/DS transportation lead times and dateline calculation  
  SAP Notes related to WRF_APC754 (search in SAP ONE Support Launchpad)
  
  
  
  
  Summary
  The message WRF_APC754 is an informational warning indicating that the external transportation chain has changed, prompting the system to recalculate the dateline to maintain accurate planning. It is not an error that stops processing but a notification to review and confirm transportation data changes and their impact on planning schedules.