The log from table registration doesn't tell the whole back-and-forth dialog that is going on between the SAS Management Console (SMC) GUI client and the SAS workspace server, because to look at the log, it all seems like it happens at once. Instead, there's a dialog going on between the wizard and the workspace.
When you select the library, SMC requests a workspace server. If you've ever attempted to register a table and get prompted for SASApp credentials, that is for starting the workspace server.
Once the workspace server is started, SMC checks to see if it needs to prompt for database credentials, based upon how the server connection for the library is defined, and what login credentials are available to the user. Since you didn't provide the registering user (in your case, sasadm@saspw) a login credential for this authentication domain, you are prompted for the userid and password for postgres.
With the credentials in hand, SMC builds a native libname statement based upon the metadata definition, and submits it to the workspace server, and queries it (via Java) to present the list of tables for the user to select from. That's when you selected the Actuals table.
After that, the libref assigned to the native libname is no longer used.
Table registration is then performed using PROC METALIB code that is built by SMC and submitted to the workspace. The OMR statement uses the metadata libname engine to assign the library.
This is where things are falling down; using strictly what's in metadata, the metadata identity that is attempting the registration does not have any login information for postgres.
I'd recommend creating a login object on the registering user's account tab with the credentials, or if you are sharing this credential, defining the credential to a group in metadata, and ensuring that the registering user is a member of this group.
Just because you are using sasadm@saspw does not mean that it can read the actual password of another user. It can't, and that's for solid good security reasons.
Carl Sommer - SAS Technical Support