Hi @Anonymous ,
Could you tell me the relationship between the two lists?
If you could show me the screen shoot of the form ,it will be better to help me understand.
Currently , one form could be set to only one data source.
So data will be updated to the form's data source.
I suggest you insert two forms and submit data separately.
If you want to update two lists by just clicking one button, you could use ";" to connect two formulas.
For example, set the submit button's OnSelect:
SubmitForm(Form1);SubmitForm(Form2)
Best regards,