find assosiated drawing REST API

Question

Hello, I was trying to find assosiated draiwn using REST API for a few days for now but didn§t succeed in it

trying every endpoint possible and trying all metadata pathes to get to it.

=== Part Number: 02430068 ===
 OID: OR:wt.part.WTPart:1254073630
 CADDocument OID: OR:wt.epm.build.EPMBuildRule:1229930576
 Endpoint: Drawings($select=Identity,Name,FileName,Version)
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1229930576')?$select=Identity&$expand=Drawings($select=Identity,Name,FileName,Version)
 Endpoint: EPMReferenceLinks
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1229930576')?$select=Identity&$expand=EPMReferenceLinks
 Endpoint: Representations
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1229930576')?$select=Identity&$expand=Representations
 Endpoint: Parts
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1229930576')?$select=Identity&$expand=Parts
 Endpoint: Versions
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1229930576')?$select=Identity&$expand=Versions

=== Part Number: 02430071 ===
 OID: OR:wt.part.WTPart:1244208165
 CADDocument OID: OR:wt.epm.build.EPMBuildRule:1229929727
 Endpoint: Drawings($select=Identity,Name,FileName,Version)
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1229929727')?$select=Identity&$expand=Drawings($select=Identity,Name,FileName,Version)
 Endpoint: EPMReferenceLinks
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1229929727')?$select=Identity&$expand=EPMReferenceLinks
 Endpoint: Representations
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1229929727')?$select=Identity&$expand=Representations
 Endpoint: Parts
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1229929727')?$select=Identity&$expand=Parts
 Endpoint: Versions
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1229929727')?$select=Identity&$expand=Versions

=== Part Number: 02454964 ===
 OID: OR:wt.part.WTPart:1247394409
 CADDocument OID: OR:wt.epm.build.EPMBuildRule:1234005375
 Endpoint: Drawings($select=Identity,Name,FileName,Version)
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1234005375')?$select=Identity&$expand=Drawings($select=Identity,Name,FileName,Version)
 Endpoint: EPMReferenceLinks
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1234005375')?$select=Identity&$expand=EPMReferenceLinks
 Endpoint: Representations
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1234005375')?$select=Identity&$expand=Representations
 Endpoint: Parts
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1234005375')?$select=Identity&$expand=Parts
 Endpoint: Versions
 Response: ❌ Failed: 400 Client Error: 400 for url: http://<my server>/Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.build.EPMBuildRule:1234005375')?$select=Identity&$expand=Versions

This article on help says what i have to do but it never worked fo me.
https://support.ptc.com/help/windchill_rest_services/r2.7/en/#page/windchill_rest_services/example_CADDocumentMgmt_navigate_CADdocument_to_Drawings.html#

GET /Windchill/servlet/odata/CADDocumentMgmt/CADDocuments('OR:wt.epm.EPMDocument:191730')?$select=Identity&$expand=Drawings($select=Identity,Name,FileName,Version)
simply doesn't work

Help me please😢

ilyachaban · Answer

After using the REST API for several days, I discovered an interesting structure in the database.A drawing has a "References" endpoint, which allows me to find the assemblies or parts it references—this works without any issues. The link is even marked as a "Drawing reference."However, even though the Windchill web interface has a "Referenced by" category, this category does not exist in the actual REST API. http:///Windchill/servlet/odata/v3/CADDocumentMgmt/CADDocumentshttp:///Windchill/servlet/odata/v3/CADDocumentMgmt/CADDocuments('OR:wt.epm.EPMDocument:1078003916')2025-06-30T07:21:54ZOR:wt.epm.EPMDocument:107800391602430074.ASM

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