In the MSP New Driver, the Summary Task Duration is incorrect in PPM after Saving back from MSP

Document ID : KB000008755
Last Modified Date : 14/02/2018
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Issue:

When saving a project back to PPM using the MSP New Driver, the duration of the Summary task is different then that of that task in Microsoft Project (MSP), while the dates of the Summary task are correct. This causes an incorrect duration in PPM. 

Steps to Reproduce: 

1. Prerequisite: 

Set the Base Calendar in PPM to 7 hours per day: 

a. In PPM go to Administration->Base Calendars 

b. Click on the Base calendar 

c. Select the check boxes next to all work days (Mon, Tues, Wed, Thurs, Fri) 

d. Click the Set Shifts button 

e. Set Shits as: 

Shift 1: 08:00 AM - 12:00 PM 

Shift 2: 01:00 PM - 4:00 PM 

f. Click Save and Return 

2. Create a new project in MSP 

3. Create a Summary task with 2 sub tasks:

a. Set up the tasks with the below dates 

Summary Task: 

Duration: 10.71 days (Default set by MSP with hours per day set to 7)

Start: 10/20/17 

Finish: 11/2/17 

Sub tasks: 

Task 1 

Duration: 5 days 

Start: 10/20/17 

Finish: 10/26/17 

Task 2 

Duration: 5 days 

Start: 10/27/17 

Finish: 11/2/17 

Start No Earlier constraint of 10/27/17 

b. Task type for all tasks: Fixed Units 

4. Save the project back to PPM (At this point, the issue occurs if your work hour are set to 7 hours in MSP, but if your work hours in MSP for the project are set to 8 hours, it will take an additional round trip save for the issue to occur). 

5. Go into the Gantt view in PPM and check the duration of the Summary task 

Expected Result: The Duration in PPM matches that in MSP
Actual Result: The Duration in PPM has changed from what is in MSP (In the above example, the duration changes to 9 days)

Environment:
This issue applies to 15.1, 15.2, and 15.3 with the MSP New Driver
Cause:

This issue is caused by: DE37219

Resolution:

This issue is fixed as of 15.1 patch 9, 15.2. patch 5 and 15.3 patch 1.