Can not import operation mapping into NWDS

Hello,

I'm using single stack PI7.3 (SP7) and I need to implement a BPM process using an operation mapping (PI). I followed SAP instructions (http://help.sap.com)/saphelp_nw73ehp1/helpdata/en/13/e9c24ef19e4db782e6b2b392746953/content.htm ), created service interfaces and operation mapping, imported service interfaces into NWDS without any issues. When I try to import Operation mapping in NWDS, everything goes through fine, I don't get any errors but Operations Mapping (PI) folder stays empty.

I'm using NWDS 7.3 SP07 PAT000.

What am I doing wrong?

regards,

Laima