Hi @Anonymous,
Could you please share a bit more about your scenario?
Could you please share a bit more about the Request Type column? Is it a Choice type column or a LookUp type column?
Where do you put the formula that you provided?
I suppose that the Request Type column is a Choice type column, and you type the formula you provided within the Items property of the Combo Box control within the Request Type Data card, is it true?
If the Request Type column is a Choice type column (which don't enable multiple selections) in your SP list, please take a try with the following workaround:
Set the Items property of the ComboBox control (ComboBox1) to following:
Distinct(Filter(lkp_TransferRequestType,Material_Details = materialDetailsVal.Selected.Value).Title,Title) /* <-- The formula you provided */
Set the Update property of the Request Type Data card (which contains above ComboBox control) to following:
{
'@odata.type':"#Microsoft.Azure.Connectors.SharePoint.SPListExpandedReference",
Value: ComboBox1.Selected.Value
}
If the Request Type column is a LookUp column, please set the Update property of the Request Type Data card (which contains above ComboBox control) to following:
{
'@odata.type':"#Microsoft.Azure.Connectors.SharePoint.SPListExpandedReference",
Id: LookUp('YourLookUpList', ReferencedColumn= ComboBox1.Selected.Value, ID),
Value: ComboBox1.Selected.Value
}
Note: The 'YourLookUpList' represents the SP list the Request Type column references values from. The ReferencedColumn represents the Column in the 'YourLookUpList' list the Request Type column references values from.
Please also check and see if the following thread would help in your scenario:
https://powerusers.microsoft.com/t5/Connecting-to-Data/Lookup-Field-not-saving-value-when-saving-NewForm/m-p/147560
Please also check if the following blog would help in your scenario:
https://powerapps.microsoft.com/en-us/blog/default-values-for-complex-sharepoint-types/
Best regards,
Kris