Zoho CRM Groups - Access to Deals of other Roles?

Zoho CRM Groups - Access to Deals of other Roles?

We are currently using the Professional version of Zoho CRM, which means we have limited Data Sharing capabilities.

We have the current Role hierarchy for users:

1. Directors
a. Sales
b. Service
c. Marketing
d. Accounts
e. Project Delivery

The idea is we want Directors information to be private, but Sales - Project Delivery to be seen by all.

We therefore set-up a Group that combines Sales - Project Delivery Roles. However, whilst they can see Leads/Contacts/Companies of other Roles, they cannot see Deals.

When the Zoho article says "Users associated with a particular group can access the records shared to a particular group and perform the necessary operations on the records.", what exactly is meant by "records"? What data is this within the CRM?

Thanks.