I've done several POSTs that work fine now, so this is one is odd. As far as I can tell, this one is set up the same as the ones that work. Not sure if the issue is with the POST body or something in SEGW or ABAP.
I confirmed through debugger that the data is flowing out through ER_ENTITY in our custom call and it uses the DEEP structure, which also appears to be correct.
I rewrote the POST form scratch, and the same thing is still happening.
Anyone else seen this happen? Output looks like this, note that all values are blank. Values were passed in and made it all the way to ER_ENTITY.
I guess next I'll try to trace the ER_ENTITY values through the stack after the custom method and see why they don't make it into the fields...
----- POST response body
<title type="text">MtlDtls(SalesOrg='',DistributionChannel='',Division='')</title>
<updated>2016-03-03T14:19:28Z</updated>
<category term="Z_NAQW_AMPORTAL_SRV.MtlDtl" scheme="http://schemas.microsoft.com/ado/2007/08/dataservices/scheme" />
<link href="MtlDtls(SalesOrg='',DistributionChannel='',Division='')" rel="self" title="MtlDtl" />
<link href="MtlDtls(SalesOrg='',DistributionChannel='',Division='')/MtlDtlOutput" rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/MtlDtlOutput" type="application/atom+xml;type=feed" title="MtlDtlOutput" />
- <link href="MtlDtls(SalesOrg='',DistributionChannel='',Division='')/MtlDtlInput" rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/MtlDtlInput" type="application/atom+xml;type=feed" title="MtlDtlInput">
<m:inline />
--- POST request body
<?xml version="1.0" encoding="UTF-8"?>
<atom:entry
xmlns:atom="http://www.w3.org/2005/Atom"
xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices"
xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
<atom:content type="application/xml">
<m:properties>
<d:SalesOrg></d:SalesOrg>
<d:Division></d:Division>
<d:DistributionChannel></d:DistributionChannel>
</m:properties>
</atom:content>
<atom:link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/MtlDtlInput"
type="application/atom+xml;type=feed"
title="">
<m:inline>
<atom:feed>
<atom:entry>
<atom:content type="application/xml">
<m:properties>
<d:MaterialNumber>200</d:MaterialNumber>
</m:properties>
</atom:content>
</atom:entry>
<atom:entry>
<atom:content type="application/xml">
<m:properties>
<d:MaterialNumber>360</d:MaterialNumber>
</m:properties>
</atom:content>
</atom:entry>
</atom:feed>
</m:inline>
</atom:link>
<atom:link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/MtlDtlOutput"
type="application/atom+xml;type=feed"
title="">
<m:inline>
<atom:feed>
<atom:entry>
<atom:content type="application/xml">
<m:properties>
</m:properties>
</atom:content>
</atom:entry>
</atom:feed>
</m:inline>
</atom:link>
</atom:entry>