How To Fix CY423 - Error when scheduling split &

SAP Error Message - Details

• Message type: E = Error

• Message class: CY - Capacity Requirements Planning

• Message number: 423

• Message text: Error when scheduling split &

What causes this issue?

While trying to schedule split number & an error arose.
A possible cause of the error is the non-availability of the person in
the split period.

System Response

The action cannot be executed. The incorrect split is not created/
changed.

How to fix this error?

Either assign the split another person or schedule the split at another
time.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CY423 - Error when scheduling split & ?

  The SAP error message CY423 typically occurs in the context of production planning and scheduling, particularly when dealing with split operations in the context of capacity planning or production orders. The error message indicates that there is an issue with scheduling a split operation, which can arise from various causes.
  Causes of CY423 Error
  
  
  Capacity Constraints: The system may not have enough capacity available to schedule the split operation. This can happen if the work center is overloaded or if there are conflicting operations scheduled at the same time.
  
  
  Incorrect Master Data: Issues with master data, such as incorrect routing, work center settings, or production version, can lead to scheduling errors.
  
  
  Scheduling Parameters: The scheduling parameters set in the production order or in the work center may not allow for splits, or the parameters may be incorrectly configured.
  
  
  Material Availability: If the materials required for the split operation are not available, the system may not be able to schedule the operation.
  
  
  Order Status: The status of the production order may prevent scheduling, such as if the order is already completed or in a status that does not allow for further scheduling.
  
  
  Solutions to CY423 Error
  
  
  Check Capacity: Review the capacity of the work center to ensure that there is enough available capacity to accommodate the split operation. You may need to adjust the scheduling or reschedule other operations.
  
  
  Review Master Data: Verify the master data related to the production order, including routing, work center, and production version. Ensure that all settings are correct and that they allow for split operations.
  
  
  Adjust Scheduling Parameters: Check the scheduling parameters in the production order and the work center. Make sure that the settings allow for split scheduling and that they are configured correctly.
  
  
  Material Availability Check: Ensure that all required materials are available for the split operation. If materials are missing, you may need to procure them or adjust the production schedule accordingly.
  
  
  Order Status Review: Check the status of the production order. If the order is in a status that does not allow for scheduling, you may need to change the status or create a new order.
  
  
  Consult SAP Notes: Look for any relevant SAP Notes or documentation that may provide additional insights or solutions specific to your version of SAP.
  
  
  Related Information
  
  Transaction Codes: You may use transaction codes like CO02 (Change Production Order) or CM01 (Capacity Planning) to investigate and resolve the issue.
  SAP Help Portal: The SAP Help Portal can provide additional documentation and troubleshooting steps related to production scheduling and capacity planning.
  SAP Community: Engaging with the SAP Community can also be beneficial, as other users may have encountered similar issues and can share their solutions.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP support team or consult with an SAP expert for further assistance.