based on favorite tutorial series https://www.youtube.com/watch?v=Ap3_Ea9H8b0

SharePointIntegration -> OnSave
create a variable varRecord, check if record exists set to true or false

[code] Set(
varRecord,
LookUp(
Organizations,
Organization = DataCardValue1.Selected.Result || SubOrganization = DataCardValue7.Selected.Result || ValueStream.Value = DataCardValue6.Selected.Value
)
);
If(
IsBlank(varRecord.ID),
SubmitForm(frm),
Notify("Duplicate record, Do not submit repeatly!", NotificationType.Error),
ResetForm(frm)
)

[/code]