Extracting open PO using ABAP program

Question

Hi friends,
My client is aksing to extract open PO's from current sap system by writing extraction program and we have download it and after that we are going to uload open PO to new sa system.They have the condition for this and asked me to write functional spec for this.using the given details ihave to write logic in functional spec.please help me.
the condition for doing this is
All POu2019s with line items with deletion indicator active will not be considered for conversion.
PO / No Receipt / No Invoice: Convert the open PO
PO / Partial Receipt / No Invoice: Convert the open items as a PO   and the received value will be converted as an open payable.
PO / Partial Receipt / Partial Invoice / No payment: Convert the open items as a PO and the received portion will be converted as an open payable.
PO / Partial Receipt / Partial Invoice / Partial Payment: Convert the open items as a PO and the rest of the order is considered closed.
PO / Full Receipt / No Invoice:  No PO conversion, Convert as open payable
PO / Full Receipt / Full Invoice / No Payment: No PO conversion, Convert as open payable
PO Upload: All the Open POu2019s will be uploaded using SHDB, the associated texts specific to header and item will be uploaded using a conversion program
Advanced thanks
Regards,
William

Answer 1

Hi,
I assume that your new SAP system is a new instance and Old G/L balances will be transfered to new system.
If that is the case, u need not take care of the PO's with partial/no payments.
It is enough to download all the PO's with open/partial GR and IR and transfer them. This list you can download from ME2M, ME2L....and so on with selection parameter WE103 for open GR and RECHNUNG for open IR.
Please first try in your test system and it should meet your requirement.
Regards,
AM Vahanan