How To Fix DMCLG101 - Sub-project &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 101

• Message text: Sub-project &1 already exists

What causes this issue?

The names of projects, sub-projects and conversion objects must be
unique across the system.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Choose unique names for projects, sub-projects and conversion objects.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMCLG101 - Sub-project &1 already exists ?

  The SAP error message DMCLG101, which states "Sub-project &1 already exists," typically occurs in the context of project management within SAP, particularly when dealing with the creation of sub-projects in the Project System (PS) module. This error indicates that you are trying to create a sub-project with a name or identifier that already exists in the system.
  Cause:
  
  Duplicate Sub-Project ID: The most common cause of this error is that the sub-project ID you are trying to create is already in use. Each sub-project must have a unique identifier within the project hierarchy.
  Incorrect Data Entry: There may have been a typographical error or misunderstanding regarding the naming conventions or identifiers used for sub-projects.
  System Configuration: In some cases, the system configuration or settings may not allow for the creation of multiple sub-projects with similar identifiers.
  
  Solution:
  
  Check Existing Sub-Projects: Before creating a new sub-project, check the existing sub-projects under the parent project to ensure that the ID you are trying to use is not already taken. You can do this by navigating to the project structure in SAP.
  Use a Unique Identifier: If the sub-project ID is already in use, choose a different, unique identifier for your new sub-project.
  Review Naming Conventions: Ensure that you are following the correct naming conventions and guidelines set by your organization for sub-projects.
  Consult Documentation: If you are unsure about the naming conventions or the structure of your projects, consult your organization's documentation or guidelines related to project management in SAP.
  Check for Deletion: If you believe the sub-project should not exist, verify if it has been deleted or archived. Sometimes, projects may not be visible due to status changes.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like CJ20N (Project Builder) or CJ03 (Display Project) to view existing projects and sub-projects.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to this error message.
  User Authorization: Ensure that you have the necessary authorizations to create or modify projects and sub-projects in the system.
  Consult with Colleagues: If you are part of a team, consult with colleagues or project managers who may have insights into the project structure and naming conventions.
  
  By following these steps, you should be able to resolve the DMCLG101 error and successfully create your sub-project.