Before: We had (still working) a couple of CRM 4.0 servers working: A productive one and a test one. We would perform any changes on the test server first and, after testing, replicate them in the productive server. For entities (custom or not) this would mean using the "Export Customizations"/"Import Customizations" functionalities. Pretty straight-forward stuff.
Now: we're testing CRM 2013 and trying to do the same with a couple of servers. We set up our data structure by hand (took some time) including the creation of all our custom entities, which are not few in number.
My question then is: How can I perform a bulk entity export-import in the same manner as it was with 4.0? I've tried selecting saving the entities to a Solution package, export the package from one server and import it onto the other. System entities feature in the target-server's import list but not the custom entities! And they are a part of the original solution packet (both checking it through CRM itself or the package file's XML code directly)
The lack of online help on this may imply that I'm not approaching this in the right way and I presume this is something already standard in CRM 2011.
Can someone give me a hint?
Thanks in advance!