How To Fix /SAPAPO/MC01_ECV037 - Multiple classes of type &1 assigned to resource &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MC01_ECV -

• Message number: 037

• Message text: Multiple classes of type &1 assigned to resource &2

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/MC01_ECV037 - Multiple classes of type &1 assigned to resource &2 ?

  The SAP error message /SAPAPO/MC01_ECV037 indicates that there are multiple classes of a specific type assigned to a resource in the Advanced Planning and Optimization (APO) module. This can lead to inconsistencies or conflicts in the resource's configuration, as SAP expects only one class of a particular type to be assigned to a resource.
  Cause:
  The error is typically caused by:
  
  Incorrect Configuration: Multiple classification types (e.g., resource classes) have been assigned to the same resource, which is not allowed.
  Data Migration Issues: During data migration or system upgrades, duplicate entries may have been created inadvertently.
  Manual Errors: Users may have manually assigned multiple classes to the same resource without realizing the implications.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Resource: Determine which resource is causing the error by checking the error message details. The resource ID will be indicated in the error message.
  
  
  Check Assigned Classes:
  
  Go to the transaction code C223 (Change Resource) or C201 (Display Resource) in the SAP GUI.
  Enter the resource ID and check the assigned classes under the classification tab.
  
  
  
  Remove Duplicate Classes:
  
  Identify the classes of the specified type that are assigned to the resource.
  Remove the duplicate class assignments, ensuring that only one class of each type remains assigned to the resource.
  
  
  
  Save Changes: After making the necessary adjustments, save the changes to the resource configuration.
  
  
  Test the Configuration: After resolving the issue, test the resource in the relevant APO processes to ensure that the error no longer occurs.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as C223 for changing resources and C201 for displaying resources.
  Documentation: Refer to SAP Help documentation for more details on resource classification and management in APO.
  Support: If the issue persists or if you are unsure about making changes, consider reaching out to your SAP support team or consulting with an SAP expert.
  
  By following these steps, you should be able to resolve the error and ensure that your resource configuration is correct.