How To Fix RSH_PROJ_ASG026 - At least one of the resources is already assigned to the request

SAP Error Message - Details

• Message type: E = Error

• Message class: RSH_PROJ_ASG - Project Assignment Messages

• Message number: 026

• Message text: At least one of the resources is already assigned to the request

What causes this issue?

You can only create multiple assignments at once if none of the selected
resources has been assigned to the request yet.

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?

To create multiple assignments at once, deselect the resources that are
already assigned to the request.
<ZH>Note</>: If you want to change existing assignments, you must do so
for each resource individually. To change an assignment, go to the
<LS>Project Team</> tab or open the resource details and go to the
<LS>Assignments</> tab.

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 RSH_PROJ_ASG026 - At least one of the resources is already assigned to the request ?

  The SAP error message RSH_PROJ_ASG026 indicates that at least one of the resources you are trying to assign to a project request is already assigned to another request. This typically occurs in project management scenarios where resource allocation is being managed.
  Cause:
  
  Resource Conflict: The resource you are trying to assign is already allocated to another project or request, leading to a conflict in resource assignment.
  Overlapping Assignments: The time periods for the resource assignments overlap, which is not allowed in the system.
  Incorrect Resource Management: The resource management settings may not allow for multiple assignments of the same resource to different requests.
  
  Solution:
  
  Check Resource Availability: Verify the availability of the resource you are trying to assign. You can do this by checking the resource's current assignments and their timelines.
  Adjust Assignments: If the resource is indeed assigned to another request, you may need to either:
  
  Reassign the resource from the current request to the new one, if possible.
  Change the timeline of the new request to avoid conflicts.
  
  
  Use Alternative Resources: If the resource is not available, consider using alternative resources that can fulfill the requirements of the project.
  Review Project Settings: Ensure that the project settings allow for the desired resource allocation. Sometimes, project settings may restrict multiple assignments.
  Consult with Project Manager: If you are unsure about the resource allocation, consult with the project manager or the resource manager to find the best course of action.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like CJ20N (Project Builder) or CJR2 (Change Project) to review and manage project assignments.
  Resource Planning Tools: Utilize SAP's resource planning tools to get a better overview of resource allocations and conflicts.
  Documentation: Refer to SAP documentation or help files for more detailed information on resource management and project assignments.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to your SAP support team for further assistance.