SAP MDG x ABAP: How to call CR Number (System Method Caller)

Note: There are several ways; this blog is written about one of them. In case of System Method Caller SELECT SINGLE * INTO @DATA(ls_table) FROM USMD120C WHERE usmd_crequest = @lv_cr_number. "lv_cr_number - in Signature Thank You,Sandeep Suggu.SAP C...