Translation: Hello, I can not activate melodyne with my studio one. It tells me wrong when I put my serial number ..
If you are having trouble activating with your serial for the Melodyne Essential product that comes bundled with Studio One Professional, make a support ticket so they can help you to sort it out.
If you are having trouble activating Melodyne with a serial you got from Melodyne, if you bought Melodyne third party or upgraded and got a new serial from them, please contact Celemony for assistance.