: The serial key is case-sensitive and must be entered exactly as provided. Avoid adding extra spaces before or after the key when copying and pasting. Official Sources
Here’s a helpful and clear message you can use for the activation prompt in City Bus Simulator : : The serial key is case-sensitive and must
The screen flashes. The engine rumbles — digitally perfect, low and patient. The steering wheel calibrates. The mirrors adjust. : The serial key is case-sensitive and must
As noted by community members on the Aerosoft Forums , replacing your actual name with your registration email often resolves this error. : The serial key is case-sensitive and must
: Your serial key is provided upon purchase, either on the back of the physical DVD manual or in the confirmation email for digital versions.