How To Fix CY545 - More than 999 resources were selected

CY545 - Overview

• 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.

CY545 - Details

• 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