Product Attribute value is not getting stamped at OLI Field level for the same product from configur

Hi ,

I have a requirment, where i need to move attribute value of child product to Line Item field (Group Id) of the same product. I explain the same by below example.

Product Structure

 Subscription  (Root)
     Test_Child (Product Category = XXX)
             Attribute Name (Group ID), Value : 111

In order to achieve above requirment, I have used the OM signal approach and added one step (mentioned below)  in dynamic pricing workflow, since it is always called from configurtaor.

Step Property: BS Name: Row Set Transformation Toolkit
               Method Name: Conditional Action Transform

inputs:  Condition 1 = {Row.Product Category} = LookupValue("PRODUCT_CATEGORY", "XXX")
         On True 1_1 = {Row.Group Id} = GetXA({Row}, "Group ID")