Two switch alternates does not work

Hi,

I am trying to control two switches in one message. I tried this for example:
https://blynk.cloud/external/api/update?token=GYHXeiLpnpcwlLn_4wejU_TXXFTgY3G2l&V0=0&V1=1

or the opposite
https://blynk.cloud/external/api/update?token=GYHXeiLpnpcwlLn_4wejU_TXXFTgY3G2l&V0=1&V1=0

But it does not work. Even more if I have one activate it will simply not respond either to close the switch or wathever. I am wondering what is the proper way to send if I want to control two switches in one command ?

thanks !

It’s always a good idea to read the documentation…

Pete.