How To Fix /SCMB/SCHED_CORE_API300 - Exception when scheduling an activity

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMB/SCHED_CORE_API -

• Message number: 300

• Message text: Exception when scheduling an activity

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMB/SCHED_CORE_API300 - Exception when scheduling an activity ?

  The SAP error message /SCMB/SCHED_CORE_API300 typically indicates that there is an exception occurring when trying to schedule an activity in the Supply Chain Management (SCM) module. This error can arise due to various reasons, and understanding the cause is crucial for finding an appropriate solution.
  Possible Causes:
  
  Data Inconsistencies: There may be inconsistencies in the data related to the activity being scheduled, such as missing or incorrect master data (e.g., resources, production versions, etc.).
  Configuration Issues: Incorrect configuration settings in the scheduling parameters or in the SCM system can lead to this error.
  Resource Availability: The resources required for the activity may not be available or may be incorrectly defined in the system.
  Capacity Constraints: If the scheduling process exceeds the available capacity of resources, it can trigger this error.
  Locking Issues: If another process is locking the data that is being accessed for scheduling, it can lead to exceptions.
  Custom Code: If there are custom enhancements or modifications in the scheduling logic, they may introduce errors.
  
  Solutions:
  
  Check Data Consistency: Verify that all necessary master data is correctly maintained and that there are no inconsistencies. This includes checking resources, production versions, and any other relevant data.
  Review Configuration: Ensure that the scheduling parameters and configurations are set up correctly. This may involve checking the settings in the SCM configuration.
  Resource Availability: Confirm that the resources required for the activity are available and correctly defined in the system. Check for any maintenance or downtime that may affect resource availability.
  Capacity Planning: Review the capacity planning settings to ensure that the scheduling does not exceed the available capacity. Adjust the capacity settings if necessary.
  Check for Locks: Investigate if there are any locks on the data being accessed. You can use transaction codes like SM12 to check for locks and resolve them if necessary.
  Debugging Custom Code: If there are custom enhancements, consider debugging the code to identify any issues that may be causing the exception.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like /SCMB/SCHED for scheduling activities, and SM21 for checking system logs for any related error messages.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the issue persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.