Opportunities are created within your customer or lead record and are used to identify any sales opportunities that are available with this lead or customer.
Is a lead the same as an Opportunity?
No, in The Layer a lead is a record that contains information about a potential customer. An opportunity is classed as a potential sale to either a lead or customer record.

If an opportunity results in a sale against a lead record this would result in the lead record converting into a customer record.
Lead Opportunity Cycle:

Customer Opportunity Cycle:

Where can I view opportunities in a record?
Within a customer record users can view opportunities within the Opportunities tab:

Within a lead record users can view opportunities within the Opps tab:

Users will also note that on the left hand side of either record type any open opportunities will be listed:

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