PowerAPPS Sharepoint Edit Form - Update and automate the default selected items in Custom Combo box

[Dhanasekaran_G]

Dear all,

Please need a help on below scenario.

I have a SharePoint list which has two custom forms in Main-List(A).  Two custom forms namely NewForm & EditForm. In both the forms I have two custom combo boxes to pull the values from different child list(B).

Scenario 1:

In New form, I have two custom combo boxes which fulls the values from child list(B). combo box1 has value from Product field and combox box2 has value from Productgroup field. Based on the Product field I can able to filter the values in Product group. And I am selecting the values from both combo box1 and combo box 2 and get it saved in Main - List(A).

Scenario 2:

Here, is the problem, I am not able to retrieve the values from the main-list(A) to the custom combo boxes in the edit form. The values exist in the main-list(A) should have been selected as a defaultselecteditems in those combo boxes. 

In Main list those values are stored in choice field and I should bring those in Editform comboboxes by default. Also I should update the values in Main-List(A).

Please let me know if anyone has faced this scenario and have any input on the same. Thanks !!

- Dhana