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

WRF_APC754 - Overview

• 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