Hi, 

We currently have two separate customers, belonging to the same group of companies, sharing the same IFS Cloud environment. 
The two companies are mapped in the system as two different companies, with different sites, warehouses and resource groups. 

The Service Catalogues and standard tasks are also different. 

However, Company A and B have common customers, with different contracts with them, and offer different services.

When creating the New Request, once the customer has been chosen, the Service Catalogues to be chosen from are all those in the system.

Is there a way to allow Company A, to see only service catalog used by Company A and Company B, only those used by Company B? 
Is it necessary to act on the permission sets? 
Is there a solution currently in use to handle cases like this?

Thanks

Stefania