can somebody show me how i add more than 2 actions in a string. i wanna add a 3rd and 4th action.
What actions do you mean?
but the third one won't work.
Why not? What response do you get back from your web app ?
the script completed but did not return anything.
thats the last sentence. sorry for the language i am from belgium so i translated it for u.
That is OK, I just translated it too 
Seems the script is working, is it not posting the data from barcode scanner 3 ? What is your script doing, posting to a google sheet ? Is there data in the barcodescanner3 text result ? Also you should have some in your script to return....
Also might as why you cannot just use one barcode scanner component for all your actions ?
it is not posting it. it is actually doing nothing. and nope not that i know of . and how do i see that?
and i cannot use one because it will not work then.
Not even like this?
Anyway, back to the matter in hand.
Have you republished your script after adding the code needed for "action2"
It may help if you show your script....
No, they are your blocks. I meant your google apps script web app.
Yes, you were not getting a response previously because you were calling "action2" as a parameter, this does not exist in your web app. You now appear to have changed this in your latest blocks.
Nice to see that script doing the rounds again, it pops up on the forum @ every 6 months 
thanks for the help!
i am amazed i didn't saw that XD
it still doesn't work even if i adjusted it.
Sorry, you cannot have a doGet2 or a doPost2.
You will have to add more if statements and more functions to doGet and doPost that handle the paremters: action2 = in/out.