The data is originally sourced from multiple SharePoint list, in which was used to create 3 collections.
The SharePoint list goes beyond the delegation, hence I put it into a collection in the beginning on app start to work around.
I then merged those 3 collections into 1, by doing the below on a text box 'OnChange' event to filter the data in the collects to something like the below.
ClearCollect(
CollectionCombined,
{OrderNumber: SumofPurchase.OrderNumber,AccountName: SumofPurchase.AccountName},
{OrderNumber: SumofUsage.OrderNumber,AccountName: SumofUsage.AccountName},
);