User confused about how to add multiple items to report

[ssb22]

I observed a non-technical user trying to add multiple items to a report via her smartphone. At first she did not understand that it was necessary to press the "+" button to add a second item. She thought she should press the "Next" button, which took her to the next page of the report, and it seemed to her that the site was not giving her a chance to add a second item.

After she understood what the "+" button does, she said it's unclear whether or not the first item would be stored if you press Next without first pressing "+".

I believe this problem can be worked around by a very small change in the user-interface design: as soon as one item is selected, disable the "Next" button until the user either presses "+" or cancel. Yes it costs one extra tap, but it forces all users to see how to add multiple items, and also removes the uncertainty about whether or not pressing "Next" before pressing "+" is supposed to discard the most recent item.

[MarvinZeising]

this was the quickest solution to the problem that I could think of:

do you think that could already be enough? disabling the next button is a lot more work, since multiple components are involved

[ssb22]

That might help. To make sure, we should watch a novice again and see if they now notice the message :)