How To Fix /SAPAPO/DEPL_MESS021 - Scheduler returned route information for multiple scheduling activities

/SAPAPO/DEPL_MESS021 - Overview

• Message type: E = Error

• Message class: /SAPAPO/DEPL_MESS -

• Message number: 021

• Message text: Scheduler returned route information for multiple scheduling activities

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/DEPL_MESS021 - Scheduler returned route information for multiple scheduling activities ?

  The SAP error message /SAPAPO/DEPL_MESS021 indicates that the scheduler has returned route information for multiple scheduling activities. This typically occurs in the context of Advanced Planning and Optimization (APO) when there are issues with the scheduling of production or transportation activities.
  
  Cause:
  
  
  Multiple Scheduling Activities: The error usually arises when the system finds multiple scheduling activities that are linked to the same route or resource. This can happen if:
  
  There are overlapping or conflicting production orders or transportation requests.
  The routing configuration allows for multiple activities to be scheduled simultaneously on the same resource.
  There are issues with the master data, such as incorrect or incomplete routing information.
  
  
  
  
  Configuration Issues: The configuration of the planning area or the settings in the APO system may not be set up correctly, leading to ambiguity in scheduling.
  
  
  Data Inconsistencies: Inconsistencies in master data, such as routing, resources, or production versions, can also lead to this error.
  
  
  
  Solution:
  
  
  Review Scheduling Activities: Check the