PO status always remains "AWAITING APPROVAL" - WF error

Question

Hi all,
We are working on SRM 5.0 SP13 ,ECS.
We have implemented the workflow WS14000145 for PO approval.Now when I perform a consistency check at SWUD for WFL  WS14000145,I get the foll errors:
E.     WS14000146     POSub.n-Step Subworkflow N-Step for PO (BADI)
       I WD:017 No start events or start transactions/forms
       I WD:019 Container element ExcludedAgents is not used
E.     TS14007959     POMAILSEND   Send Mail to Affected Parties/Purch
E.     BUS2201                        APPROVED
       Binding warnings
       E SW:084 The object categories 'BO' (source) and 'CL' (target)ar
E.     BUS2201                        REJECTED
       Binding warnings
       E SW:084 The object categories 'BO' (source) and 'CL' (target) ar
How do I correct the above errors for the workflow?
Also because of the above WF errors,I am unable to close some of the PO's .When I try to close the PO's(by checking the indicators "No further confirmations expected " and  "No further invoices expected " under Item data-->statistics),the indicators remain checked but the PO status always remains "AWAITING APPROVAL".When I click on the approval preview(graphical view),I see message "Error .click for details" and under table view ,I see "NO APPROVAL REQUIRED".
In order to close the above PO's,is there any workaround or other way I can change the status of the PO temporarily to atleast be able to close the PO's?
Please advise.

Answer 1

Thanks Muthu!The note does seem relevant but I am still confused due to a new observation
Another observation :
The WF for PO approval is actually not activated in our system which means that this issue is not related to workflow .Additionally ,now I see some errors in the backend application monitor stating that "PO backend Transfer failed".
So as Masa mentioned earlier,this issue could be more related to PO replication.I tried all ways to update the status for the PO and observed the foll:
1. After running SW01,for the changed/latest  GUID of the PO,the PO header status did change to "ORDERED" but then under Item data-->statistics the indicator for confirmation was reset.When I tried to chekc the indicator to again close the PO,the PO header status again changed to "Awaiting Approval".
2. Using FM  SWW_DLEETE_ITEM,deleted the work item(old) for the PO and tried to chnage the status as mentioned above.But the issue still remained.
3.Tried to make the status "AWAITING APPROVAL" inactive by using FM "CRM_STATUS_UPDATE" but no success.In BBP_PD,the document status was updated(Awaiting approval inactive checked) but in the web portal,Under "Process Purcahse order" transaction,the PO header status still showed as "AWAITING APPROVAL"..
Please advise.