How To Fix CY545 - More than 999 resources were selected

SAP Error Message - Details

• Message type: E = Error

• Message class: CY - Capacity Requirements Planning

• Message number: 545

• Message text: More than 999 resources were selected

What causes this issue?

On entering the planning table (tabular form) more than 999 resources
(eg. work centers or capacities) were selected. However a maximum of
999 resources can be selected.

How to fix this error?

You should ensure that on entering the planning table (tabular form) you
can only select a maximum if 999 resources.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CY545 - More than 999 resources were selected ?

  The SAP error message CY545 ("More than 999 resources were selected") typically occurs in the context of capacity planning or production planning when a user attempts to select or process more than 999 resources in a single operation. This limit is set within the SAP system to ensure performance and manageability.
  Cause:
  The error is triggered when a user tries to execute a transaction or report that involves selecting a number of resources (like work centers, machines, or production lines) that exceeds the system's predefined limit of 999. This can happen in various scenarios, such as:
  
  Running a capacity evaluation or planning report.
  Trying to execute a mass change or mass processing operation.
  Using a selection screen that allows for multiple resource selections.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Limit the Selection: Modify your selection criteria to ensure that the number of resources selected does not exceed 999. You can do this by:
  
  Narrowing down the selection criteria (e.g., by date, plant, or resource type).
  Running the report or transaction multiple times with different subsets of resources.
  
  
  
  Batch Processing: If you need to process a large number of resources, consider breaking the operation into smaller batches. For example, if you have 2000 resources, you could process them in two separate runs of 1000 resources each.
  
  
  Custom Development: If the limitation is a significant issue for your business processes, consider discussing with your SAP development team about creating a custom report or transaction that can handle larger selections, if feasible.
  
  
  Check SAP Notes: Sometimes, SAP releases notes or patches that address specific limitations or provide enhancements. Check the SAP Support Portal for any relevant notes related to this error.
  
  
  Consult Documentation: Review the SAP documentation for the specific transaction or report you are using to understand any inherent limitations and best practices for selection.
  
  
  Related Information:
  
  Transaction Codes: The error can occur in various transaction codes related to capacity planning, such as CM01 (Capacity Planning), CM21 (Capacity Leveling), or others.
  SAP Version: The behavior may vary slightly depending on the version of SAP you are using, so ensure you are referring to the correct documentation for your version.
  Performance Considerations: The limit is in place to prevent performance degradation. Always consider the impact of large selections on system performance.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with SAP experts for further assistance.