Adding new fields to Change Request screen and saving data into custom table

Hi All,

I am new to MDG and working on my first requirement which is as below

When we create change request, on that screen I need to add two custom fields

I need to update the data entered in these custom fields into a Z table along with some standard fields. The updation needs to happen in create and change mode.

This data has to reflect in LFA1 as well.

BP_VENGEN is the entity.

Can anyone please guide me with steps/links to achieve this functionality - how to add fields.

Also where do I write the code for saving data into my z table. Any sample code too would be appreciated.

Thanks in advance.

Regards,

Vanessa