Please refer to the solution at the end.

You asked what accessibility tool, Bernardo, I too am having the same parent / child role issue, using AXE accessibility tool and although the issue does not appear with me on WAVE, our company policy requires all Outsystems software pass accessibility checks on each of these 2 accessibility tools.

Widget Tree for accordion:

The accordion consists of a tablist of accordion items, each containing address data only, ie no input fields.

AXE advises the following url for the solution, but not sure of solution to this would be in Outsystems: https://dequeuniversity.com/rules/axe/4.3/aria-required-parent?application=AxeChrome

F

As you can see below, the accordion item, has already been assigned (role="tab"), but the list had not been assigned (role="tablist").

This is how I assigned the role of tablist to the list:

By this action, of assigning the list the role of tablist, the critical issue was resolved.

Kind regards

Fearghal

Hi Ashraf Girgis,
Could you please provide that module to allow us to do some tests and make sure we're in the exact same scenario?

Best Regards,
GM

The file exceeds the limit allowed (4MB).

But as you can see, I found the solution, which in the end, was easy, ie I just needed to add assign to the parent list of the accordion, the role of "tablist".

Hi @Fearghal Murray
We don't need the all module, only the screen/blocks with this use case.
I was asking this since we would like to explore the use case and try to understand how could we make this easier in the future.
Best Regards,
GM

I hope this is the best way of sending you a particular block!

Hi @Fearghal Murray
That worked just fine. We'll analyze this internally and try to improve this experience.
Meanwhile, Ashraf Girgis since you already have a solution for this could you mark this thread as solved? 

Cheers,
GM 

It needs to be the person who started this post, which in this case is  Ashraf Girgis .

Cheers,
GM