How To Fix CY704 - Order & operation & finishes before end of a predecessor

SAP Error Message - Details

• Message type: E = Error

• Message class: CY - Capacity Requirements Planning

• Message number: 704

• Message text: Order & operation & finishes before end of a predecessor

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CY704 - Order & operation & finishes before end of a predecessor ?

  The SAP error message CY704 ("Order & operation & finishes before end of a predecessor") typically occurs in the context of production planning and scheduling within SAP's PP (Production Planning) module. This error indicates that a specific operation in a production order is scheduled to finish before the predecessor operation has completed. This can lead to scheduling conflicts and inefficiencies in the production process.
  Cause:
  
  Incorrect Scheduling: The operation's finish date is set to occur before the predecessor operation's finish date.
  Dependencies Not Respected: The system is unable to respect the defined dependencies between operations, which may be due to incorrect setup in the routing or production order.
  Lead Times: The lead times defined for operations may not be sufficient, causing operations to overlap incorrectly.
  Manual Changes: Manual adjustments to the scheduling of operations may have inadvertently created conflicts.
  
  Solution:
  
  Check Routing: Review the routing for the production order to ensure that the sequence of operations is correct and that the dependencies are properly defined.
  Adjust Scheduling: Modify the scheduling of the operations to ensure that all predecessor operations finish before the subsequent operations start. This can be done in the production order or through the scheduling settings.
  Review Lead Times: Ensure that the lead times for operations are set correctly. Adjust them if necessary to allow for proper sequencing.
  Use Scheduling Tools: Utilize SAP's scheduling tools (like the Capacity Planning or Production Planning tools) to automatically adjust the scheduling of operations based on the defined dependencies.
  Check for Conflicts: Look for any other production orders or operations that may be causing conflicts in the scheduling and resolve them accordingly.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CO02 (Change Production Order) or CO03 (Display Production Order) to review and adjust the production order details.
  Routing and Work Center: Ensure that the routing and work center settings are correctly configured to reflect the actual production process.
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or fixes related to this error.
  Testing: After making adjustments, test the changes in a development or quality environment before applying them to the production environment to ensure that the issue is resolved without introducing new problems.
  
  By following these steps, you should be able to identify the root cause of the CY704 error and implement a solution to resolve it.