How To Fix CN881 - Number of capacities in activity exceeds capacities in work center

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 881

• Message text: Number of capacities in activity exceeds capacities in work center

What causes this issue?

You have entered a number of individual capacities in the activity
which exceeds the number you defined for the work center.
In this check only the individual capacities in the capacity header of
the work center are taken into account, not the capacities in the
shifts, of which there may be more.

System Response

If you choose <ls>Continue</>, the system copies the values without
changing them. If you choose <LS>New Entry</>, the system highlights
the influencing data. Depending on the calcualtion key, you can change
the duration, work or the number of capacities.
&WHAT_TO_DO& I
Check the number of individual capacities in the work center in the
capacity header and the shifts. Make the necessary changes here or
adjust the data in the activity.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN881 - Number of capacities in activity exceeds capacities in work center ?

  The SAP error message CN881 indicates that the number of capacities assigned to an activity in a production order exceeds the available capacities defined in the work center. This typically occurs during the scheduling or planning phase of production when the system tries to allocate resources to a task but finds that the demand exceeds the supply.
  Cause:
  
  Capacity Overload: The activity in the production order requires more capacity than what is available in the work center.
  Incorrect Configuration: The work center may not be configured correctly, leading to discrepancies in available capacities.
  Incorrect Activity Definition: The activity in the production order may have been defined with an incorrect number of required capacities.
  Scheduling Parameters: The scheduling parameters may not be set correctly, leading to unrealistic capacity requirements.
  
  Solution:
  
  
  Review Work Center Capacities:
  
  Go to the work center configuration (Transaction code CR02) and check the available capacities. Ensure that the capacities are defined correctly and are sufficient for the planned activities.
  
  
  
  Adjust Activity Requirements:
  
  Review the production order (Transaction code CO02) and check the activity definition. If the number of required capacities is too high, consider adjusting it to match the available capacities in the work center.
  
  
  
  Re-evaluate Production Order:
  
  If the production order is not feasible with the current capacities, consider rescheduling the order or splitting it into smaller orders that can be handled within the available capacity.
  
  
  
  Capacity Planning:
  
  Use capacity planning tools in SAP (Transaction code CM01 or CM21) to analyze and adjust the capacity planning for the work center. This can help identify bottlenecks and allow for better resource allocation.
  
  
  
  Check Scheduling Parameters:
  
  Review the scheduling parameters in the production order and ensure they are set correctly. This includes lead times, setup times, and processing times.
  
  
  
  Consult with Production Planning Team:
  
  If necessary, consult with the production planning team to understand the requirements and constraints better and to make informed decisions about capacity adjustments.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CR02: Change Work Center
  CO02: Change Production Order
  CM01: Capacity Planning
  CM21: Capacity Leveling
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on work center configuration and capacity planning.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  
  
  By following these steps, you should be able to resolve the CN881 error and ensure that your production planning aligns with the available capacities in your work centers.