How To Fix PSB_API_MSGCL018 - Only one project can be loaded at a time

SAP Error Message - Details

• Message type: E = Error

• Message class: PSB_API_MSGCL -

• Message number: 018

• Message text: Only one project can be loaded at a time

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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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message PSB_API_MSGCL018 - Only one project can be loaded at a time ?

  The SAP error message PSB_API_MSGCL018 indicates that the system is currently set up to allow only one project to be loaded at a time. This is a common restriction in certain SAP modules, particularly in project management or project system (PS) environments.
  Cause:
  The error typically occurs when:
  
  An attempt is made to load multiple projects simultaneously in a context where only one is permitted.
  There may be a session or transaction that is already processing a project, preventing another project from being loaded.
  The system settings or configurations may restrict the loading of multiple projects.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Active Sessions: Ensure that there are no other active sessions or transactions that are currently processing a project. If there are, complete or terminate those sessions before attempting to load a new project.
  
  
  Close Unused Sessions: If you have multiple SAP GUI sessions open, close any that are not needed. This can help free up resources and allow the new project to load.
  
  
  Review Configuration Settings: If you have access to system configuration, check the settings related to project loading. Ensure that the system is configured to allow the desired behavior.
  
  
  Use the Correct Transaction: Make sure you are using the correct transaction code for loading projects. Sometimes, using the wrong transaction can lead to restrictions.
  
  
  Consult Documentation: Review SAP documentation or help resources related to the specific module you are working with. There may be additional guidelines or best practices for managing projects.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They can provide more detailed insights based on your specific system configuration and usage.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  User Permissions: Ensure that your user role has the necessary permissions to load projects. Sometimes, restrictions can be due to user authorization settings.
  System Performance: If the system is under heavy load, it may affect the ability to load projects. Monitor system performance and consider scheduling project loads during off-peak hours.
  
  By following these steps, you should be able to resolve the PSB_API_MSGCL018 error and successfully load your project in SAP.