Hi Gautham,
As per my understanding, the field you are mentioning is not a field from the standard structure. In that case, you need to know where exactly have you enhanced or which component, so that you can locate that structure. In many cases, the structure Customer Header (CUSTOMER_H) gets appended. While, in other scenarios different other fields are appended. In case you are not sure about where exactly the field is appended, you can check the same from the SAP CRM Web Client UI, and then you will know the component.
Regarding, the BRF+ Application ID (GUID), you need to pass the same to the CL_FDT_FACTORY Class. This GUID is BRF+ Application Guid and not related to any one order component. You can use the below code snippet.
Code
Data : l_if_factory TYPE REF TO if_fdt_factory,
l_if_application TYPE REF TO if_fdt_application.
l_if_factory = cl_fdt_factory=>if_fdt_factory~get_instance( ). Here pass the Application GUID and you will get the exact application. After that you can get the details of the BRF+ Application.
Hope this helps.
Thanks,
Samantak Chatterjee.