OLAP workspaces and OLAP option licensing in the ebs 12.1.3

Hi,

in our EBS 12.1.3 database we have 12 OLAP workspaces created:

OWNER                 AW_NUMBER AW_NAME    

-------------------- ---------- ------------

SYS                         144 AWREPORT   

SYS                         143 AWXML      

SYS                         142 AWCREATE10G

SYS                         141 AWCREATE   

SYS                         140 AWMD       

SYS                         139 EXPRESS    

FPA                        1003 FPAPJP     

APPS                       1007 XWDEVKIT   

APPS                       1004 ODPCODE    

ZPB                        1002 ZPBDATA    

ZPB                        1001 ZPBANNOT   

ZPB                        1000 ZPBCODE   

How can I discover what use them? Could I delete them? I don't know if they are usefull.

I would like avoid to use OLAP option in the Enterprise Edition Database.

EBS comes with this option pre-installed in the database and I cannot disable OLAP option because can affect functionality (Doc ID 2205278.1)

I don't know if this option must be licensed or it's included in the EBS license.