When creating a follow up activity 'E-mail' after saving the opportunity.
During email creation in HTML mode I included a new button into redefined method SET_TOOLBAR from class CL_CRM_SEND_SCREEN_IMPL . UI Component: BT126H_MAIL
When you click on this button a decision pop up is raised
survey_popup = comp_controller->window_manager->create_decision_popup( iv_title = lv_title iv_description = lv_description iv_visible_row_count = '10' iv_display_table = gt_survey ).
When you click on one of the records pop up has to offer. URL is generated and has to be included into Email Body as a Hyperlink.
My question is: Which method do I use to first retrieve the email body and then update it?