SIMPLE Invoices are not getting purged

Hello Dev Team,

SR 3-9978966471

SIMPLE Invoices are not getting purged due to below condition: we have pa_addition_flag='N' for the list of invoices which are not getting purged.

-- Retest PA Invoices
/* https://bug.oraclecorp.com/pls/bug/webbug_edit.edit_info_top?rptno=11722321bug 11722321  incorporating changes of https://bug.oraclecorp.com/pls/bug/webbug_edit.edit_info_top?rptno=8842960bug 8842960  and 8979828 in R12 start */
     UPDATE ap_purge_invoice_list PL
     SET PL.double_check_flag = 'N'
     WHERE PL.double_check_flag = 'Y'
     AND EXISTS (
        SELECT 'Invoices are not transfered to PA'
        FROM ap_invoices I,
             ap_invoice_distributions D