Hi guys, i need help in saving the combobox data into sharepoint list.
I have created a list call "(MR) Material Record List" and also another list call " TRF Number List 2".
In "(MR) Material Record List", the data column call "TRF Number" is a choice type column;
In " TRF Number List 2", the data column call "TRF Number" is a single line of text type column.
In PowerApps, I have use the "(MR) Material Record List" to create a form. For the 'TRF Number' column, I have changed the dropdown box to combobox and set the data sources to " TRF Number List 2".
The reason I do this because I want to use the data from " TRF Number List 2" and save the data to my master list- "(MR) Material Record List".
This step is successful.

When i check back Sharepoint list, the TRF number that selected in PowerApps will not update when i save the result.

This is the function that I use. Am I missing something in 'OnSelect' property at the save button? Testform is the form that use to save the TRF Number. Or Power Apps does not allow us to save the data in different column types?
```
Patch(
'(MR) Material Record List',
varFormData,
PipngForm.Updates,
DuctingForm.Updates,
Rform.Updates,
Testform.Updates
);
Set(ShowConfirmRequest,false);
Navigate(HomeScreen);
```