To add on to this I noticed the following:

When I log into my projects the URL is:
Source https://myecmserver:9443/jazz/web/console/PVTTrain#action=com.ibm.rqm.planning.home.actionDispatcher&subAction=viewUserHome

However I noticed that the example uses is:
https://xxxxxxxxxxx:9443/jazz/secure/service/com.ibm.rqm.integration.service.IIntegrationService/resources/ProjectA

Should I be using "jazz/secure/service/com.ibm.rqm.integration.service.IIntegrationService/resources/"

Yes the URL should be for the IIntegrationService, not the web/console type URL. Also I noticed in the command you posted above that hits the 403 error, you specified -u as opposed to -us, for the user id. And I noticed that you didn't specifying any destination project area, so the copy will be made within a singe project area. I assume that's not what you want to do, but if it is, just use the Copy Template button in the Manage Templates UI. Also, please confirm which version of RQM you are using.

To add on to this I noticed the following:

When I log into my projects the URL is:
Source https://myecmserver:9443/jazz/web/console/PVTTrain#action=com.ibm.rqm.planning.home.actionDispatcher&subAction=viewUserHome

However I noticed that the example uses is:
https://xxxxxxxxxxx:9443/jazz/secure/service/com.ibm.rqm.integration.service.IIntegrationService/resources/ProjectA

Should I be using "jazz/secure/service/com.ibm.rqm.integration.service.IIntegrationService/resources/"

Yes the URL should be for the IIntegrationService, not the web/console type URL. Also I noticed in the command you posted above that hits the 403 error, you specified -u as opposed to -us, for the user id. And I noticed that you didn't specifying any destination project area, so the copy will be made within a singe project area. I assume that's not what you want to do, but if it is, just use the Copy Template button in the Manage Templates UI. Also, please confirm which version of RQM you are using.

As Kurtis mentioned, you need the IIntegrationService URL and -us (see https://jazz.net/wiki/bin/view/Main/RQMCopyUtility#Argument_Reference). Note, my post on Thu, 14 Jul 2011 @ 854 was to test your user credentials using the web UI.

Please confirm your command using the Argument Reference and RQM version.

I have several test plans that cannot be copied. This is typical of the error I get:

Aug 1, 2011 12:00:36 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Starting: testplan urn:com.ibm.rqm:testplan:106
Aug 1, 2011 12:00:38 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Starting: attachment urn:com.ibm.rqm:attachment:359
Aug 1, 2011 12:00:44 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Finishing: attachment urn:com.ibm.rqm:attachment:359
Aug 1, 2011 12:00:44 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Starting: attachment urn:com.ibm.rqm:attachment:360
Aug 1, 2011 12:00:46 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Finishing: attachment urn:com.ibm.rqm:attachment:360
Aug 1, 2011 12:00:46 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Starting: attachment urn:com.ibm.rqm:attachment:342
Aug 1, 2011 12:00:55 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Finishing: attachment urn:com.ibm.rqm:attachment:342
Aug 1, 2011 12:00:55 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Starting: attachment urn:com.ibm.rqm:attachment:356
Aug 1, 2011 12:01:05 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Finishing: attachment urn:com.ibm.rqm:attachment:356
Aug 1, 2011 12:01:05 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Starting: requirement urn:com.ibm.rqm:requirement:227
Aug 1, 2011 12:01:05 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Finishing: requirement urn:com.ibm.rqm:requirement:227
Aug 1, 2011 12:01:05 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Starting: template testplan/com.ibm.rqm.planning.templates.testplan.template_1296767960595
Aug 1, 2011 12:01:05 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Starting: objective urn:com.ibm.rqm:objective:com.ibm.rqm.planning.objectives._128863545714092691
Aug 1, 2011 12:01:06 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Finishing: objective urn:com.ibm.rqm:objective:com.ibm.rqm.planning.objectives._128863545714092691
Aug 1, 2011 12:01:06 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Starting: objective urn:com.ibm.rqm:objective:com.ibm.rqm.planning.objectives._128863561553679333
Aug 1, 2011 12:01:06 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Finishing: objective urn:com.ibm.rqm:objective:com.ibm.rqm.planning.objectives._128863561553679333
Aug 1, 2011 12:01:06 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Starting: objective urn:com.ibm.rqm:objective:com.ibm.rqm.planning.objectives._12886357746169774
Aug 1, 2011 12:01:06 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Finishing: objective urn:com.ibm.rqm:objective:com.ibm.rqm.planning.objectives._12886357746169774
Aug 1, 2011 12:01:06 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Starting: objective urn:com.ibm.rqm:objective:objectives.defects.open.sev1s
Aug 1, 2011 12:01:07 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Finishing: objective urn:com.ibm.rqm:objective:objectives.defects.open.sev1s
Aug 1, 2011 12:01:07 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Starting: objective urn:com.ibm.rqm:objective:com.ibm.rqm.planning.objectives._128863587052180684
Aug 1, 2011 12:01:07 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Finishing: objective urn:com.ibm.rqm:objective:com.ibm.rqm.planning.objectives._128863587052180684
Aug 1, 2011 12:01:07 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Starting: objective urn:com.ibm.rqm:objective:com.ibm.rqm.planning.objectives._129600962701695109
Aug 1, 2011 12:01:07 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Finishing: objective urn:com.ibm.rqm:objective:com.ibm.rqm.planning.objectives._129600962701695109
Aug 1, 2011 12:01:09 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Error received: 400, retry #: 0
Aug 1, 2011 12:01:42 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Error received: 400, retry #: 1
Aug 1, 2011 12:02:13 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Error received: 400, retry #: 2
Aug 1, 2011 12:02:46 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Error received: 400, retry #: 3
Aug 1, 2011 12:03:17 PM com.ibm.rqm.ct.util.Logger logInfo
INFO: Error received: 400, retry #: 4
Aug 1, 2011 12:03:47 PM com.ibm.rqm.ct.util.Logger logError
SEVERE: RestException executing: PUT, RC: 400, message: <xml><ns2><ns2>400</ns2><ns2>The uploaded content does not match the XML schema for testplan</ns2><ns2>javax.xml.bind.UnmarshalException
- with linked exception:
[org.xml.sax.SAXParseException: The element type "ns3:testplan" must be terminated by the matching end-tag

It is likely that I modified the contents of the template these test plans were based on. Newly created test plans can be copied.

Any known / fixed problems that sound similar?

Can you GET the problematic test plan as XML using the RQM reportable REST API (see https://jazz.net/wiki/bin/view/Main/RqmApi#Read) and post the XML? In addition, can you POST/import the test plan XML to the destination repository/project area?