Patching Combo box fields (multi-values)

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Posted on by LaraDanicaLim

Hi,

I have the following single line of text fields in a Sharepoint List:

Fiscal year
Period
Business Unit
Cost Center
G/L Account

Then in my Power Apps form, these fields are all in combo box control. The choices for each are coming from different secondary sharepoint lists. Then I allowed multiple-select for Cost Center and G/L Account.

Whenever I submit a new item, the values selected in these 5 fields are not stored/reflected in the Sharepoint list.

Here's the configuration of my form.

In my Submit button's OnSelect is:

NewForm(NewForm);
SubmitForm(NewForm);


Then in my NewForm's OnSuccess property:

Set(
    varRecord,
    Self.LastSubmit
);
If(
    IsError(
        Patch(
            'DataSource',
            varRecord,
            {
                'Fiscal Year': combo_FY.Selected.'Fiscal Year',
                'Period': combo_Period.Selected.Title,
                'Business Unit': combo_BU.Selected.Title,
                'Cost Center': Left(Concat(combo_CC.SelectedItems, Title & ", "), Len(Concat(combo_CC.SelectedItems, Title & ", ")) - 2),
                'G/L Account': Left(Concat(cb_GL.SelectedItems, 'GL code' & ", "), Len(Concat(cb_GL.SelectedItems, 'GL code' & ", ")) - 2),
                Flag: 1
            }
        )
    );
    Notify("Patch failed", NotificationType.Error),
    Notify("Patch succeeded", NotificationType.Success)
);
 Navigate(HomeScreen, ScreenTransition.None);

I have tested this, it says 'Patch succeeded' but still, values are not reflected in Sharepoint. I tested selecting multiple values of Cost Center and G/L Account. I even tried changing it to internal names like:



What am I missing?



Again, in my main list, these fields are single line of text but in the form, I made them as combo box controls with choices coming from different sharepoint list.

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stampcoin 5,146 Super User 2026 Season 1 on at

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@LaraDanicaLim Hi,

Instead of relying on SubmitForm and then patching, directly use Patch in your button's OnSelect to ensure correct data submission in one step.
Replace your button's OnSelect property with the following (adjusting field/internal names accordingly)

// Prepare concatenated strings for multi-select combo boxes Set( varCostCenters, Concat(combo_CC.SelectedItems, Title, ", ") ); Set( varGLAccounts, Concat(cb_GL.SelectedItems, 'GL code', ", ") ); // Patch a new record directly Set( varRecord, Patch( 'DataSource', Defaults('DataSource'), { 'Fiscal Year': combo_FY.Selected.'Fiscal Year', 'Period': combo_Period.Selected.Title, 'Business Unit': combo_BU.Selected.Title, 'Cost Center': varCostCenters, 'G/L Account': varGLAccounts, Flag: 1 } ) ); // Check if patch succeeded If( !IsBlank(varRecord), Notify("Patch succeeded", NotificationType.Success); Navigate(HomeScreen, ScreenTransition.None), Notify("Patch failed", NotificationType.Error) );

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MS.Ragavendar 6,337 Super User 2026 Season 1 on at

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@LaraDanicaLim,

For Single Line of Text just give comboboxcontrolname.Selected

More Info

https://www.enjoysharepoint.com/power-apps-combo-box-patch/

Instead of this,

Set(

varRecord,

Self.LastSubmit

);

Try with Defaults(DataSource) for newly creation of record for existing record use Lookup(datasource, ID=ItemId) accordingly.

🏷️ Please tag me @MS.Ragavendar if you still have any queries related to the solution or issue persists.

✅ Please click Accept as solution if my post helped you solve your issue and help others who will face the similar issue in future.

❤️ Please consider giving it a Like, If the approach was useful in other ways.

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WarrenBelz 154,799 Most Valuable Professional on at

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Hi @LaraDanicaLim,

Adding to what @stampcoin has posted, if you are actually needing to patch that data OnSuccess of the Form, there are a number of fundamental issues with what you are doing: -

You have NewForm(NewForm) before SubmitForm(NewForm), which means the form will be cleared before you submit it.

NewForm is not a good name for a Form as it is a Reserved Word in Power Apps and I suggest you change it.

Once the Form is submitted, the values are cleared, meaning you cannot then reference the control values OnSuccess

You do not need all the string manipulation on the Concat - @stampcoin has also addressed this - if you use what is posted.

With all that in mind, you can set a Table Variable before you submit the Form like this
UpdateContext( { varRecord: { 'Fiscal Year': combo_FY.Selected.'Fiscal Year', 'Period': combo_Period.Selected.Title, 'Business Unit': combo_BU.Selected.Title, 'Cost Center': Concat(combo_CC.SelectedItems, Title, ", "), 'G/L Account': Concat(cb_GL.SelectedItems, 'GL code', ", "), Flag: 1 } } ); SubmitForm(NewForm); NewForm(NewForm)

and the OnSuccess
If( IsError( Patch( 'DataSource', Self.LastSubmit, { 'Fiscal Year': varRecord.'Fiscal Year', 'Period': varRecord.Period', 'Business Unit': varRecord.'Business Unit', 'Cost Center': varRecord.'Cost Center', 'G/L Account': varRecord.'G/L Account' Flag: 1 } ) ); Notify("Patch failed", NotificationType.Error), Notify("Patch succeeded", NotificationType.Success) );

Please click Does this answer your question if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it a Like.
Visit my blog Practical Power Apps LinkedIn

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LaraDanicaLim 21 on at

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Hi, @WarrenBelz @MS.Ragavendar @stampcoin.

Thanks for all your responses. I tried everything. However, I tried searching more and figured that patching is not needed. Since the combo boxes are already inside a data card, the data card's Update property must be configured like:

combo_FY.Selected.'Fiscal Year'
combo_BU.Selected.Title

and etc.

Then SubmitForm(New_Form); is already enough without patching.

Anyway, thank you so much! This is my first time with Power Apps so I'm still having challenges with the basics.

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WarrenBelz 154,799 Most Valuable Professional on at

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Hi @LaraDanicaLim,

We all assumed that you had a reason for patching OnSuccess after submitting the Form - this is normally done when additional values not on the Form are added.

If both of those are multi-select Combo Boxes and the field is a Single Line of Text, then the Update would be
Concat( combo_FY.SelectedItems, 'Fiscal Year', ", " )

and
Concat( combo_BU.SelectedItems, Title, ", " )

Please click Does this answer your question if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it a Like.
Visit my blog Practical Power Apps LinkedIn

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