is WCEM (CRM backend) supporting OCI catalog integration as ISA was supporting ?

i'm struggling to find out this information .. Buz case is the following : web user is getting authenticated in WCEM, then get access to an external catalog in order to select products & fill in the shopping basket in WCEM, in order to book a sales order in CRM at the end. This process is currently running under an ISA B2B/CRM platform connecting a websphere based catalog. The option would be to replace ISA/CRM with WCEM/MDM/CRM, keeping the current catalog system for user navigation purpose (and other technical and organizational reasons). Thanks.