How To Fix DPR_SHARED206 - &1 &2: Start constraint conflicts with a successor date

SAP Error Message - Details

• Message type: E = Error

• Message class: DPR_SHARED - Development Projects: Messages for Shared Objects

• Message number: 206

• Message text: &1 &2: Start constraint conflicts with a successor date

What causes this issue?

When backward scheduling the project element, the system calculated a
start date based on a successor relationship and the duration of the
project element. This start date occurs before the fixed start of the
project element.

System Response

The system ignores the successor relationship and defines the fixed
start date as the calculated start of the project element. The system
calculates the finish date from that point onwards using the duration of
the project element.

How to fix this error?

Check whether the fixed start date is realistic.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message DPR_SHARED206 - &1 &2: Start constraint conflicts with a successor date ?

  The SAP error message DPR_SHARED206 indicates that there is a conflict with the scheduling of tasks in a project, specifically related to start constraints and successor dates. This error typically arises in the context of project management within SAP, particularly when using the Project System (PS) or the Project Management (PM) module.
  
  Cause:
  The error occurs when:
  
  A task (or activity) has a start constraint that conflicts with the planned start date of its successor task. 
  For example, if a predecessor task is set to start on a specific date due to a constraint, but its successor task is scheduled to start earlier than that date, the system will raise this error.
  
  
  Solution:
  To resolve the DPR_SHARED206 error, you can take the following steps:
  
  
  Check Task Dependencies:
  
  Review the predecessor and successor relationships between the tasks in your project. Ensure that the successor task does not have a start date that is earlier than the end date