Dynamically edit supabase db with M2M relationship on Datagrid

[Broberto]

You actually need to add your arrays as parameters, in the formulas[...](here), that’s why you’re getting the error.

As for the selected array, what are you using as a select? If you’re using multiselect option from WeWeb, you should be able to see, multiselect values. But I think that you might need to use this guide from Mariano

Are form variables not visible while the form is in a collection item?

No need to retrieve the input with js. You can keep track of the values using variables and workflows. create a variable of type object [image] on your inputs add a workflow triggered on change where you change the variable [image] [image] Now on submit you can access the values: [chrome_kiGf8an4uI]

to get the values in the selected array. Could you tell me more about your logic?