How To Fix WRF_APC230 - Perform a scheduling first before you change the calculated dates

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 230

• Message text: Perform a scheduling first before you change the calculated dates

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• What is the cause and solution for SAP error message WRF_APC230 - Perform a scheduling first before you change the calculated dates ?

  Certainly! Here's a detailed explanation for the SAP error message WRF_APC230: "Perform a scheduling first before you change the calculated dates":
  
  Error Message:
  WRF_APC230
  
  Perform a scheduling first before you change the calculated dates.
  
  Cause:
  This error occurs in SAP Advanced Planning and Optimization (APO), specifically in the Production Planning and Detailed Scheduling (PP/DS) or Supply Network Planning (SNP) modules, when you attempt to manually change or adjust calculated dates (such as planned start or finish dates) of a production order, planned order, or a product receipt without having performed scheduling beforehand.
  
  The system expects that scheduling (which calculates feasible dates based on constraints, capacities, and dependencies) is done first to establish a baseline schedule.
  If you try to override or change dates before this scheduling run, the system blocks the action to maintain data consistency and integrity.
  This ensures that any manual changes are made on top of a valid, system-generated schedule.
  
  
  When does it typically occur?
  
  When working with planned orders or production orders in APO PP/DS.
  When trying to manually adjust dates in the planning board or via transaction /SAPAPO/RRP3 or /SAPAPO/SDP94.
  When the system has not yet run the scheduling heuristic or detailed scheduling run for the relevant orders or products.
  
  
  Solution:
  
  
  Perform Scheduling First:
  
  Run the scheduling heuristic or detailed scheduling for the relevant product, location, or planning scenario.
  This can be done via:
  
  Planning board: Use the scheduling function.
  Transactions like /SAPAPO/RRP3 (Product View) or /SAPAPO/SDP94 (Supply Network Planning).
  Background jobs or planning runs that perform scheduling.
  
  
  This will calculate and fix the dates based on constraints and dependencies.
  
  
  
  After Scheduling, Change Dates:
  
  Once scheduling is done, you can manually adjust the calculated dates if necessary.
  The system will allow changes because the baseline schedule exists.
  
  
  
  Check Customizing and User Authorizations:
  
  Ensure that the user has the necessary authorizations to perform scheduling and date changes.
  Verify that the planning version and product/location are correctly selected.
  
  
  
  Check for Locking or System Issues:
  
  Sometimes, locks or inconsistencies in the planning data can cause this error.
  Make sure no other user or process is locking the planning objects.
  
  
  
  
  Additional Information:
  
  Scheduling in APO PP/DS: Scheduling is a key step that considers capacity constraints, product dependencies, and resource availability to generate feasible production or procurement dates.
  Manual Date Changes: SAP allows manual overrides but only after a valid schedule exists to prevent conflicts.
  Planning Versions: Make sure you are working in the correct planning version where scheduling has been performed.
  Related Transactions:
  
  /SAPAPO/RRP3 - Product View for detailed scheduling.
  /SAPAPO/SDP94 - Supply Network Planning.
  /SAPAPO/PPDS - Various PP/DS planning transactions.
  
  
  SAP Notes: Check SAP Notes for any known bugs or patches related to this message.
  
  
  Summary:
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Attempting to change calculated dates before performing scheduling in APO PP/DS.
  
  
  Solution
  Run scheduling first to generate baseline dates, then make manual changes if needed.
  
  
  Related
  APO PP/DS scheduling, planning board, transactions /SAPAPO/RRP3, /SAPAPO/SDP94.
  
  
  
  
  If you need help with the exact steps to run scheduling or further troubleshooting, please provide details about your APO version and the specific planning scenario.