P2P Query based on the Purchase Order Number

SELECT
   A.ORG_ID "ORG ID",
   E.VENDOR_NAME "VENDOR NAME",
   UPPER(E.VENDOR_TYPE_LOOKUP_CODE) "VENDOR TYPE",
   F.VENDOR_SITE_CODE "VENDOR SITE",
   F.ADDRESS_LINE1 "ADDRESS",
   F.CITY "CITY",
   F.COUNTRY "COUNTRY",
   TO_CHAR(TRUNC(D.CREATION_DATE)) "PO DATE",
   D.SEGMENT1 "PO NUMBER",
   D.TYPE_LOOKUP_CODE "PO TYPE",
   C.QUANTITY_ORDERED "QTY ORDERED",
   C.QUANTITY_CANCELLED "QTY CANCALLED",
   G.ITEM_DESCRIPTION "ITEM DESCRIPTION",
   G.UNIT_PRICE "UNIT PRICE",
   (NVL(C.QUANTITY_ORDERED,
   0)-NVL(C.QUANTITY_CANCELLED,
   0))*NVL(G.UNIT_PRICE,
   0) "PO Line Amount",
   (SELECT
      DECODE(PH.APPROVED_FLAG,
      'Y',
      'Approved')  
   FROM
      PO.PO_HEADERS_ALL PH  
   WHERE
      PH.PO_HEADER_ID = D.PO_HEADER_ID) "PO STATUS",
   A.INVOICE_TYPE_LOOKUP_CODE "INVOICE TYPE",
   A.INVOICE_AMOUNT "INVOICE AMOUNT",
   TO_CHAR(TRUNC(A.INVOICE_DATE)) "INVOICE DATE",
   A.INVOICE_NUM "INVOICE NUMBER",
   (SELECT
      DECODE(X.MATCH_STATUS_FLAG,
      'A',
      'Approved')  
   FROM
      AP.AP_INVOICE_DISTRIBUTIONS_ALL X  
   WHERE
      X.INVOICE_DISTRIBUTION_ID = B.INVOICE_DISTRIBUTION_ID)"Invoice Approved?",
   A.AMOUNT_PAID,
   H.AMOUNT,
   I.CHECK_NUMBER "CHEQUE NUMBER",
   TO_CHAR(TRUNC(I.CHECK_DATE)) "PAYMENT DATE"  
FROM
   AP.AP_INVOICES_ALL A,
   AP.AP_INVOICE_DISTRIBUTIONS_ALL B,
   PO.PO_DISTRIBUTIONS_ALL C,
   PO.PO_HEADERS_ALL D,
   PO.PO_VENDORS E,
   PO.PO_VENDOR_SITES_ALL F,
   PO.PO_LINES_ALL G,
   AP.AP_INVOICE_PAYMENTS_ALL H,
   AP.AP_CHECKS_ALL I  
WHERE
   A.INVOICE_ID = B.INVOICE_ID  
   AND B.PO_DISTRIBUTION_ID = C. PO_DISTRIBUTION_ID (+)  
   AND C.PO_HEADER_ID = D.PO_HEADER_ID (+)  
   AND E.VENDOR_ID (+) = D.VENDOR_ID  
   AND F.VENDOR_SITE_ID (+) = D.VENDOR_SITE_ID  
   AND D.PO_HEADER_ID = G.PO_HEADER_ID  
   AND C.PO_LINE_ID = G.PO_LINE_ID  
   AND A.INVOICE_ID = H.INVOICE_ID  
   AND H.CHECK_ID = I.CHECK_ID  
   AND F.VENDOR_SITE_ID = I.VENDOR_SITE_ID  
   AND C.PO_HEADER_ID IS NOT NULL  
   AND A.PAYMENT_STATUS_FLAG = 'Y'  
   AND D.TYPE_LOOKUP_CODE != 'BLANKET'  
   AND D.SEGMENT1 = 'Your Purchase Order Number';

Also read: Procure to Pay Cycle Step by Step Explanation