Calling an Child Interface from Parent Interface

There are multiple ways of doing it.

1. If your parent interface needs to get and pass values to process model, then

a. Create two rule inputs in child interface and pass it to child interface. The data flow will be as below

process variable >> parent interface rule input >> child interface rule input 

2. If your parent interface is standalone, then you can use localvariables to initialise the two rule inputs

local!cancel >> ri!cancel

local!excelData >> ri!excelData

I have added Child Interface and Parent Interface screenshots. Child Interface is a Form that has File Upload, Cancel and Submit Button. It has 2 Rule Inputs Cancel (boolen) and excelData (Document).

Parent Interface has Navigation as shown in the screenshot, My expectation is when user clicks on Bulk Upload, it should show the Child Interface. So in the Parent Interface Bulk Upload Section Layout, I have added rule!Child Interface, when its asking for parameters, I have passed on 2 local variables and I was getting below error message:

The contents field on a column layout cannot contain a form layout. Received a form layout at index 1.

maheshg821223 said:

The contents field on a column layout cannot contain a form layout

This error message is pretty self-explanatory.  A child interface cannot contain "a!formLayout()", since a!formLayout() cannot be nested at all.  You really don't need it though, you can do almost everything you need with a!sectionLayout; the Form Layout component only needs to be used in the top-most form in any case (and even then, it's not 100% required, just makes certain configuration aspects easier for a user input task interface).

Thank you Mike, I have created an interface with section layout instead of Form layout.

Thank you Mike, I have created an interface with section layout instead of Form layout.