Wanting to vent a problem I know people are aware of in hopes Adobe recognizes this issue and takes steps to remedy.
The issue of auto assigned DPI setting to all photos that enter into lightroom cc. Particularly, assigning 240dpi to all images without any option otherwise. What?!
Also the fact that if choosing to open file in photoshop from Lightroom cc, the file is auto imported at 240 dpi. And before anyone suggests 240 dpi is enough, unfortunately its not enough for me and my workflow. I would love to make large, high quality prints from lr cc files but until they fix this guess I wont be.
And just adding a bit more cold water.....as @WobertC said, the only time the PPI setting is relevant is when the export dimensions are set using either inches or centimetres. When choosing either of those options, and then setting the specific value that's required, the "Resolution" box appears where you can indeed then set whatever PPI value you require. Lightroom will then use the Dimensions value and the Resolution value to determine exactly how many pixels are needed to be produced in order to allow the correct size print to be printed at the required PPI value.