As far as i know PropertyName element for BBOX was mandatory in WFS Filter 1.0.0. However it shouldnt be mandatory in 1.1.0. therefore following filter should be valid and be processed correctly in 1.1.0 but not in 1.0.0<ogc:Filter>
<ogc:BBOX>
<gml:Envelope>
<gml:lowerCorner></gml:lowerCorner>
<gml:upperCorner></gml:upperCorner>
</gml:Envelope>
</ogc:BBOX>
</ogc:Filter>
however i get exception from WFS (Arcgis 10 SP2) without <ogc:PropertyName>...</ogc:PropertyName><ows:ExceptionText>The expected xml element PropertyName was not found.</ows:ExceptionText>
is there a configuration for this or is this element mandatatory in ArcGIS Server WFS?