How To Fix REBDOA019 - &1 is assigned more than once with overlapping dates to &2

REBDOA019 - Overview

• Message type: E = Error

• Message class: REBDOA - Messages for Object Relationships

• Message number: 019

• Message text: &1 is assigned more than once with overlapping dates to &2

What causes this issue?

Object &V1& is assigned more than once. However the time intervals of
the assignments overlap.

System Response

This type of assignment is not allowed.

How to fix this error?

Change the time intervals so that they do not overlap.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

REBDOA019 - Details

• The SAP error message REBDOA019 indicates that a specific object (like a resource, cost center, or project) is assigned more than once with overlapping dates to another object. This typically occurs in the context of resource planning or assignment in SAP, particularly in modules like SAP Project System (PS) or SAP Controlling (CO).
  
  Cause:
  The error arises when:
  
  An object (e.g., a resource or cost center) is assigned to another object (e.g., a project or order) for a time period that overlaps with another assignment of the same object to a different project or order.
  This can happen due to incorrect data entry, duplicate assignments, or changes in project timelines that have not been updated in the system.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Overlapping Assignments:
  
  Check the assignments of the object mentioned in the error message. Look for any overlapping date ranges in the assignments.
  Use transaction codes like CJ20N (Project Builder)