How To Fix DMCLG003 - The project &1 already exists

DMCLG003 - Overview

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 003

• Message text: The project &1 already exists

What causes this issue?

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 a unique name.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

DMCLG003 - Details

• The SAP error message DMCLG003, which states "The project &1 already exists," typically occurs when you attempt to create a new project in the SAP system, but a project with the same identifier (or project number) already exists in the system. This can happen in various SAP modules, particularly in project management or project system (PS) environments.
  
  Cause:
  
  Duplicate Project Number: The most common cause is that the project number you are trying to use has already been assigned to another project in the system.
  Incorrect Input: You may have mistakenly entered the project number or identifier.
  System Configuration: There may be settings in the system that prevent the creation of projects with certain identifiers.
  
  
  Solution:
  
  
  Check Existing Projects: Before creating a new project, check the existing projects in the system to see if the project number you want to use is already taken. You can do this by using transaction codes like CJ20N (Project Builder)