How To Fix /SAPAPO/SNP401 - No resource has been selected in the tree

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/SNP -

• Message number: 401

• Message text: No resource has been selected in the tree

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/SNP401 - No resource has been selected in the tree ?

  The SAP error message /SAPAPO/SNP401 No resource has been selected in the tree typically occurs in the SAP Advanced Planning and Optimization (APO) module, particularly when working with the Supply Network Planning (SNP) functionality. This error indicates that the system is unable to find any resources selected in the resource tree for the planning process you are trying to execute.
  Causes:
  
  No Resources Defined: There may be no resources defined in the resource tree for the planning area you are working with.
  Incorrect Selection: The user may not have selected any resources in the resource tree before executing the planning run.
  Authorization Issues: The user may not have the necessary authorizations to view or select resources.
  Planning Area Configuration: The planning area may not be correctly configured to include the relevant resources.
  Resource Status: The resources may be inactive or not available for planning.
  
  Solutions:
  
  
  Select Resources: Ensure that you have selected the appropriate resources in the resource tree before executing the planning run. You can do this by navigating to the resource selection screen and making sure at least one resource is highlighted.
  
  
  Check Resource Configuration: Verify that the resources are correctly defined in the system. Go to the resource master data and ensure that the resources are active and assigned to the correct planning area.
  
  
  Review Authorizations: Check if the user has the necessary authorizations to access and select resources. This may require coordination with your SAP security team.
  
  
  Validate Planning Area Settings: Ensure that the planning area is correctly set up to include the resources you need. You can check the configuration in the SAP APO system.
  
  
  Resource Availability: Confirm that the resources are available for planning. If they are marked as inactive or not available, you will need to activate them.
  
  
  Use the Correct Transaction: Make sure you are using the correct transaction or application for the planning run. Sometimes, using the wrong transaction can lead to such errors.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/SNP1 for SNP planning, /SAPAPO/RES1 for resource management, and /SAPAPO/MC90 for planning area configuration.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Documentation: Refer to the official SAP documentation for APO and SNP for detailed guidance on resource management and planning processes.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or reach out to SAP support for further assistance.