Dataset create a new element using other fields

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Jerome,
The blend would be First Name + Last Name ( In this exemple it wiould be “Pierre Lacasse”

I actually was successful merging the two fields using the form. I created an inputbox to link to a dataset field
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let nomComplet2 = $w(“#input6”).value + " " + $w(“#input7”).value
$w(“#input9”).value = nomComplet2;

    $w("#dynamicDataset").save();

I can see that my Input9 field displays the combined value which is in my case Pierre Lacasse .

but when I do the dynamicDataset saves, it doesn’t go into the new field I had created in my database.

Any idea?

Pierre Lacasse