Submit form as current user

[FailSafe]

I just want to submit the filled out form as the user currently logged in / editing the form. Do I need to edit the Items line or something?

Bonus: I would also like to Submit a form where the form is not present and filled out for the currently logged in user, so no reference of data cards or forms. I just want to change data for the logged in used based on OnSelect functionality.

[Pstork1]

1) SubmitForm does submit as the current user when pressing a button in the OnSelect. There is no way to change that in Power Apps. 

2) There is no way to Submit the Form as a different user. 

3) You can use almost any action property (OnSelect, OnChange, etc ) to Submit a form.

[FailSafe]

Okay I think I know where I'm confusing my question in my wording. I want the SubmittForm action only to apply for the entry on the list for the current user. I'm not trying to change the backend "Modified by" or "Edited by".

[Pstork1]

The submit form should apply to whatever item the form is bound to.  What is the formula you are using for your item statement?  And what data source are you using?  It sounds like SharePoint, but you've never specified.

[FailSafe]

I knew it was in regard to the item field. Yes it's a SharePoint List for the data source. My item field is blank cause I made the button a submission and did not do like the default template needs of BrowseGaller1.Selected for the item field because I'm not trying to go through the selection I just want the current user to be selected and I don't know how to default it to them.

[Pstork1 · Accepted solution]

You need to have some way to uniquely identify the record and bind it to the form if you want to use Submit form.  As you said that is normally done using a Gallery and the selected property.  But you can also do it using a Lookup() if you have a value that can be used to identify a particular item.  The simplest form of that is if you know the Item ID number.  Then the Item property of the form is.

Lookup(sharepointlist,ID=theIdNumber)

[FailSafe]

I know that this is the answer, but how do I get the ID number for the current user with this? Basically with the button I just want to update the current users field when submitting the form.

[Pstork1]

It doesn't have to be the ID.  It can be any field that will uniquely identify the record you want to update.  Power Apps aside if you look at the database which record do you want to update when you press the button.  You have to have some way to pick that record out of all the rest.  If you want to update more than one record at a time then you can't use submit form.  You have to use some form of forall() and Patch().