How To Fix CY803 - You should look in the scheduling log

SAP Error Message - Details

• Message type: E = Error

• Message class: CY - Capacity Requirements Planning

• Message number: 803

• Message text: You should look in the scheduling log

What causes this issue?

Errors or warnings arose during the planning step last called up.
Therefore, you should look at the scheduling log.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CY803 - You should look in the scheduling log ?

  The SAP error message CY803, which states "You should look in the scheduling log," typically occurs in the context of production planning and scheduling within the SAP system. This message indicates that there is an issue with the scheduling of a production order or a related process, and it suggests that you should check the scheduling log for more detailed information about the error.
  Cause:
  The error can be caused by various factors, including but not limited to:
  
  Resource Availability: The required resources (machines, labor, etc.) may not be available at the scheduled time.
  Capacity Constraints: There may be capacity constraints that prevent the scheduling of the order.
  Incorrect Master Data: Issues with master data, such as incorrect routing, work center settings, or production versions.
  Scheduling Parameters: Incorrect scheduling parameters or settings in the production order or in the planning configuration.
  Dependencies and Constraints: Dependencies between orders or constraints that are not met.
  
  Solution:
  To resolve the CY803 error, follow these steps:
  
  
  Check the Scheduling Log: 
  
  Go to the production order or the relevant transaction where the error occurred.
  Look for the scheduling log, which can usually be accessed through the order details or by using transaction codes like CO03 (Display Production Order) and navigating to the scheduling log.
  
  
  
  Analyze the Log: 
  
  Review the messages in the scheduling log to identify specific issues or constraints that are causing the scheduling failure.
  Look for any warnings or errors that provide insight into what needs to be corrected.
  
  
  
  Correct Master Data: 
  
  Ensure that all relevant master data (routing, work centers, production versions) is accurate and up to date.
  Check for any missing or incorrect data that could affect scheduling.
  
  
  
  Adjust Scheduling Parameters: 
  
  Review and adjust the scheduling parameters in the production order if necessary.
  Ensure that the lead times, setup times, and other relevant parameters are correctly defined.
  
  
  
  Check Resource Availability: 
  
  Verify that the required resources are available and not overloaded.
  If necessary, adjust the production schedule to accommodate resource availability.
  
  
  
  Re-schedule the Order: 
  
  After making the necessary corrections, attempt to re-schedule the production order.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CO01 (Create Production Order), CO02 (Change Production Order), and CO03 (Display Production Order).
  SAP Notes: Check SAP Notes for any known issues or patches related to scheduling errors.
  Documentation: Review SAP documentation on production planning and scheduling for best practices and troubleshooting tips.
  User Roles: Ensure that you have the appropriate authorizations to view and modify production orders and scheduling settings.
  
  By following these steps, you should be able to identify the root cause of the CY803 error and implement the necessary corrections to resolve it.