Meaning of Rank in Payloads, and *orpos publish tables

Hi Gurus,

We are currently facing dimp consumption issue..

Our DIMP is getting generate like

<PricePromotion ChangeType="ADD" ID="248341" PromoCompID="676665" PromoCompDetlID="58816357" StartDateTime="2014-06-02T00:00:00.0Z" EndDateTime="2014-06-30T23:59:59.0Z" Type="NewPrice" Priority="1" TemplateType="Default">

<Name>SP14-EOSS_SU13-50% OFF-EXT</Name>

<Description>SP14-EOSS_SU13-50% OFF-EXT</Description>

<Item ID="154372229">

<Price>25</Price>

</Item>

<Item ID="154372229">

<Price>25</Price>

</Item>

</PricePromotion>

Same item code is coming twice in XML file , due to which it is not getting consumed in ORPOS.

on my investigation i found there were two child entries in RPM*ORPOS*SIMPLE*PROMO*PUBLISH  table one is with rank 1 and another rank 2..