Don't overwrite data in sharepoint via patch

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Posted on by Dave-ITMan

Hi Experts,

In my app I have a drop down box within a gallery and i've set the OnChange property to the below. I'm wanting the history comments to be added to what is already in the history column in sharepoint but currently it's overwriting what is already there. Can you advise what I need to change please? FYI, the Technician selection should overwrite the choice currently in sharepoint, it's just the History text that shouldn't.

Select(Parent);
Patch(
 TicketingSystem,
 'Gallery-Tickets'.Selected, 
 {
 Technician: 'Dropdown-Technician'.Selected.Value,
 History: User().FullName & " - " & Text(Now(),"[$-en-GB]dd/mm/yyyy hh:mm:ss","en-GB") &":" & Char(13) &
 "----------------" & Char(13) &
 "Technician changed to: " & 'Dropdown-Technician'.Selected.Value 
 }
)

Thanks in advance

Dave

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Building Power Apps

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Verified answer

Fredrik_A 3,403 Super User 2026 Season 1 on at

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Not at my pc right now but this might work:

Patch( TicketingSystem, 'Gallery-Tickets'.Selected, { Technician: 'Dropdown-Technician'.Selected.Value, History: 'Gallery-Tickets'.Selected.History & Char(13) & User().FullName & " - " & Text(Now(),"[$-en-GB]dd/mm/yyyy hh:mm:ss","en-GB") &":" & Char(13) & "----------------" & Char(13) & "Technician changed to: " & 'Dropdown-Technician'.Selected.Value } )

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