3614778 - Unable to Create Purchase Order Item with Zero Price via Web Service

An error message is displayed when attempting to create a purchase order with a zero price via web service. 
Error - "Price missing; price required for expected follow-up documents invoice or ERS".

SAP Business ByDesign

1. Logon to SOAP UI
2. Enter the payload request
3. Attempt to add a purchase order item with a price of 0 
4. Error message appears

The error occurred due to the partner developed solution in the payload.

Remove the PDI solution from the payload and you will be able to create a purchase order with zero price. Please find the sample payload. 

<n0:PurchaseOrderBundleMaintainRequest_sync xmlns:n0="http://sap.com/xi/SAPGlobal20/Global">
 <BasicMessageHeader/>
 <PurchaseOrderMaintainBundle>
  <BusinessTransactionDocumentTypeCode>001</BusinessTransactionDocumentTypeCode>
  <PurchaseOrderID>ABC</PurchaseOrderID>
  <Item ItemImatListCompleteTransmissionIndicator="true"  actionCode="01">
   <Quantity unitCode="MTR">117</Quantity>
   <QuantityTypeCode>Ea</QuantityTypeCode>
   <Description languageCode="EN"/>
   <ListUnitPrice>
    <Amount currencyCode="USD">0</Amount>
    <BaseQuantity unitCode="EA">1</BaseQuantity>
    <BaseQuantityTypeCode>MTR</BaseQuantityTypeCode>
   </ListUnitPrice>
   <DeliveryPeriod>
    <StartDateTime timeZoneCode="UTC+7">YYYY-MM-DDT00:00:00Z</StartDateTime>
    <EndDateTime timeZoneCode="UTC+7">YYYY-MM-DDT00:00:00Z</EndDateTime>
   </DeliveryPeriod>
   <DirectMaterialIndicator>true</DirectMaterialIndicator>
   <ThirdPartyDealIndicator>false</ThirdPartyDealIndicator>
   <FollowUpInvoice>
    <RequirementCode>05</RequirementCode>
   </FollowUpInvoice>
   <ItemProduct actionCode="01">
    <CashDiscountDeductibleIndicator>false</CashDiscountDeductibleIndicator>
    <ProductCategoryIDKey>
     <ProductCategoryInternalID/>
    </ProductCategoryIDKey>
    <ProductKey>
     <ProductTypeCode>1</ProductTypeCode>
     <ProductIdentifierTypeCode>1</ProductIdentifierTypeCode>
     <ProductID>XYZ</ProductID>
    </ProductKey>
    <ProductRequirementSpecificationKey>
     <RequirementSpecificationID>ID</RequirementSpecificationID>
    </ProductRequirementSpecificationKey>
   </ItemProduct>
  </Item>
 </PurchaseOrderMaintainBundle>
</n0:PurchaseOrderBundleMaintainRequest_sync>

KBA , SRD-SRM-PRO , Purchase Requests and Orders , Problem