Document Approval For Indent.

Can any one tell me why the P.o is automatically approved & released after i pres send for approval request ? though the approver id is other than user id.
The code running in Send for approval request is "

IF ApprovalMgt.SendPurchaseApprovalRequest(Rec) THEN;

also if i change the approval setup many times than the next eror comes :
There is no Approval Entry within the filter.

Filters: Table ID: 38, Document Type: Order, Document No.: PO-00001.

The error occurs when I try to Send an Approval Request from a Purchase Order.

in code unit 439 approval management following code running iinside send purchase approval reqest .plz suggest where might be the problem , i m not a programmer.


TestSetup;
WITH PurchaseHeader DO BEGIN
IF Status <> Status::Open THEN
EXIT(FALSE);

IF NOT ApprovalSetup.GET THEN
ERROR(Text004);

IF NOT PurchLinesExist THEN
ERROR(Text015,FORMAT("Document Type"),"No.");

TemplateRec.SETCURRENTKEY("Table ID","Document Type",Enabled);
TemplateRec.SETRANGE("Table ID",DATABASE::"Purchase Header");
TemplateRec.SETRANGE("Document Type","Document Type");
TemplateRec.SETRANGE(Enabled,TRUE);
IF TemplateRec.FIND('-') THEN BEGIN
REPEAT
IF TemplateRec."Limit Type" = TemplateRec."Limit Type"::"Credit Limits" THEN BEGIN
ERROR(STRSUBSTNO(Text025,FORMAT(TemplateRec."Limit Type"),FORMAT("Document Type"),
"No."));
END ELSE BEGIN
IF NOT FindApproverPurchase(PurchaseHeader,ApprovalSetup,TemplateRec) THEN
ERROR(Text010);
END;
UNTIL TemplateRec.NEXT = 0;
FinishApprovalEntryPurchase(PurchaseHeader,ApprovalSetup,MessageType);
CASE MessageType OF
MessageType::AutomaticPrePayment:MESSAGE(Text128,PurchaseHeader."Document Type",PurchaseHeader."No.");
MessageType::AutomaticRelease:MESSAGE(Text003,PurchaseHeader."Document Type",PurchaseHeader."No.");
MessageType::RequiresApproval: MESSAGE(Text001,"Document Type","No.");
END;
END ELSE
ERROR(STRSUBSTNO(Text129,PurchaseHeader."Document Type"));
END;