Your changes to the following project plan were not saved yet to the server: ^1}Would you like to revert to the last saved ...

{Your changes to the following project plan were not saved yet to the server: ^1}Would you like to revert to the last saved version of the project?

Click Yes if you want to cancel the pending save operation and overwrite your cached copy of the plan with the latest copy from the server. You will lose all changes you made to the project plan.
Click No to open a cached copy of the project plan in read-only mode.
Click Cancel to abort load operation.