Adding a record type in a related record type

I am not clear with your requirements. Let's start with where are you using this record (which object) and what are you willing to do there?

Im' on an interface, i'm populating fields from record A and i want to add items on recordA that have a cardinality of M.

Let's say, my record A is an order, record b contains products related to the order.

What i want to do is to polulate record A (and i'm ok with it), populate record b1 (and still it's ok), then i want to add a new line to add a new product and populate it. What i cannot do so far, is to add a new record (b2)  to insert a new product.

Im' on an interface, i'm populating fields from record A and i want to add items on recordA that have a cardinality of M.

Let's say, my record A is an order, record b contains products related to the order.

What i want to do is to polulate record A (and i'm ok with it), populate record b1 (and still it's ok), then i want to add a new line to add a new product and populate it. What i cannot do so far, is to add a new record (b2)  to insert a new product.

you have to append the value in the relationship of the record
try this ->

{
  a!buttonArrayLayout(
    buttons: {
      a!buttonWidget(
        label: "Button",
        style: "OUTLINE",
        saveInto: {a!save(ri!temp2['recordType!{198b8d86-5c88-48ab-bd28-2eac7c64e68e}DCT temp2.relationships.{9bdadcd1-263c-47c9-9338-3c75d50b1519}tempp'],append(ri!temp2['recordType!{198b8d86-5c88-48ab-bd28-2eac7c64e68e}DCT temp2.relationships.{9bdadcd1-263c-47c9-9338-3c75d50b1519}tempp'],'recordType!{ccc00773-778b-4f61-a0e4-1a05ae874a50}DCT tempp'('recordType!{ccc00773-778b-4f61-a0e4-1a05ae874a50}DCT tempp.fields.{0c3125cd-4950-484e-9f8e-236576fbe768}id': 1)))}
      )
    },
    align: "START",
    marginBelow: "NONE"
  )
}

Yes, in that case, you can add new items in your related record under the same base record using the append function. 

Refer from the image below. 

balti 

Thanks,

This is what i was looking for and it works!.

My mistake was starting always from the root record.

Harshit Bumb (Appyzie) , , JayaPrakash Ravipati 

Thanks for supporting!