SharePoint List Power App Form: Save Multiple Edit Forms Simultaneously

When using a custom Power App form integrated with a SharePoint list, and the Power App form contains multiple edit forms (e.g. SharePointForm1, Form1, Form2), you may encounter an issue of the SubmitForm function not effectively saving all edit forms at once, especially when used within the OnSave property. 

Here are few examples that have not worked for me at all.

SubmitForm(SharePointForm1);

SubmitForm(Form1);

SubmitForm(Form2)

and

SubmitForm(SharePointForm1) && SubmitForm(Form1) && SubmitForm(Form2)

The solution for me was to use the Patch function instead. See example below.

Patch('List Name',LookUp('List Name',ID=SharePointIntegration.Selected.ID),

SharePointForm1.Updates, Form1.Updates, Form2.Updates);RequestHide()

Hope this helps!