Power Platform Community Forum Thread Details

Do you custom a form for your SP list using PowerApps?

Do you want to switch to the Edit form after you created a new item in your SP list?

I have made a test on my side, please take a try with the following workaround:

I created separated forms to create, edit or show the list item in custom form via the following blog:

https://powerapps.microsoft.com/en-us/blog/separate-custom-forms/

On your side, you could consider take a try to custom your three separated forms as a mentioned above.

Set the OnNew property of the SharePointIntegration control to following:

Set(CurrentSubmitted, Blank()); /* <-- Reset CurrentSubmitted variable */
Set(SharePointFormMode, "CreateForm"); 
NewForm(CreateItemForm); 
Navigate(CreateScreen, ScreenTransition.None)

Set the OnEdit property of the SharePointIntegration control to following:

Set(CurrentSubmitted, Blank()); /* <-- Reset CurrentSubmitted variable */
Set(SharePointFormMode, "EditForm"); 
EditForm(EditItemForm); 
Navigate(EditScreen, ScreenTransition.None)

Set the OnSave property of the SharePointIntegration control to following:

If(SharePointFormMode="CreateForm", SubmitForm(CreateItemForm), If(SharePointFormMode="EditForm", SubmitForm(EditItemForm)))

Set the OnSuccess property of the CreateItemForm (New Form) to following:

Set(CurrentSubmitted, CreateItemForm.LastSubmit);
ResetForm(CreateItemForm); 
EditForm(EditItemForm);
Set(SharePointFormMode, "EditForm");
Navigate(EditScreen,ScreenTransition.None)

On your side, you should type:

Set(CurrentSubmitted, YourNewForm.LastSubmit);
ResetForm(YourNewForm); 
EditForm(YourEditForm);
Set(SharePointFormMode, "EditForm")
Navigate(EditScreen,ScreenTransition.None)

Set the Item property of the EditItemForm (Edit Form) within your Edit screen to following:

If(
 IsBlank(SharePointIntegration.Selected) || IsEmpty(SharePointIntegration.Selected),
 First('20190211_case5'),
 If(!IsBlank(CurrentSubmitted), CurrentSubmitted, SharePointIntegration.Selected)
)

On your side, you should type:

If(
 IsBlank(SharePointIntegration.Selected) || IsEmpty(SharePointIntegration.Selected),
 First('YourSPList'),
 If(!IsBlank(CurrentSubmitted), CurrentSubmitted, SharePointIntegration.Selected)
)

Please check the attached GIF screenshot for more details:

Best regards,