I have a web app that imports a ms project .xml. Users of the web app can then change the following properties: Notes, Physical Percent Complete and Finish Date. The project .xml can then be exported with only the mentioned altered. When the updated xml is imported back into ms Project the 3 properties: Percentage Complete, Notes and Finish Date update fine, however the duration remains the same and thus the start date alters to accommodate. How can I lock the start date during the import and force the duration to dynamically change? Because I am altering only the Finish Date and nothing else time related, I was surprised that the import didn’t error in the first place (since there would be conflicts in my xml). I need to learn how importing an xml works, what are the limits.. how to change certain properties whilst maintaining others and letting ms Project do it magic where necessary. 

​I have a web app that imports a ms project .xml. Users of the web app can then change the following properties: Notes, Physical Percent Complete and Finish Date. The project .xml can then be exported with only the mentioned altered. When the updated xml is imported back into ms Project the 3 properties: Percentage Complete, Notes and Finish Date update fine, however the duration remains the same and thus the start date alters to accommodate. How can I lock the start date during the import and force the duration to dynamically change? Because I am altering only the Finish Date and nothing else time related, I was surprised that the import didn’t error in the first place (since there would be conflicts in my xml). I need to learn how importing an xml works, what are the limits.. how to change certain properties whilst maintaining others and letting ms Project do it magic where necessary.   Read More

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