A company is using Service Cloud, B2C Commerce, and Marketing Cloud to provide an end-to-end...

A company is using Service Cloud, B2C Commerce, and Marketing Cloud to provide an end-to-end B2C solution. The company does not use MuleSoft or any other integration middleware and does not plan on using them in the near future. The company has about 10 million customers with a growth rate of 10% year over year, On average, each customer raises 10-50 support tickets each year, Each ticket may contain multiple comments, responses, and attachments. There is a need for the service agents to have visibility on customer tickets for up to 5 years.

What approach should a Solution Architect recommend in order to deliver the desired functionality given the company's expected growth over the next 5 years, while still adhering to the platform's governor limits?