I dont know how I can convert this line into AL code
Window.INPUT(2,faplicac);
My AL Extension Version it's 0.16 and the error that I receive it's;
'Dialog' does not contain a definition for 'INPUT'
How do you resolve this error?
Since there's no INPUT dialog in BC you will need to do something else. For example, create a mini page with a textbox and use that instead.
Here's a simple example: https://github.com/srenders/AL-Demos/tree/master/InputPopup
Thanks @srenders I will check it. I just check it but when I am running you example in BC license cronus its supouse that the pop up have to appear before client page loads?
No, the popup will appear when you click the action ClickMe on the Customer List
I dont know why I am not finding the modal, I click in costumer list but nothing appear, I try to click multiple actions in the menu but theres nothing called ClickMe and I trying to click in the first section called "General" but theres no way. Can you give me another tip?
Thanks,
When you deploy the extension, to your server (change the launch.json) then in the customer list you should see the action ClickMe:

Sorry but Im not getting the sames options. Im running:
Image: microsoft/bcsandbox:es
vsix: 0.16.19969

It's a version of the sandbox issue?
Maybe? To be sure, you can try to add the action somewhere else on that page or on another page?
We haven't seen any problem with actions not showing up. Can you make sure that the extension got successfully deployed to your server? The action might be somewhere else on the ES version of the product or it might have been moved by a profile.
As @srenders suggested, please try adding the action somewhere else on that page.
Thanks for your time @StanislawStempin and @srenders I solved the problem