When migrating sales data, following the correct object sequence is crucial for maintaining data integrity and relationships. The recommended order starts with Accounts, then Contacts, as they form the foundational relationship structure in Salesforce. Opportunities and Products follow, with Product Line Items next to ensure that dependencies are met. Cases and Leads are typically imported after these foundational elements, followed by Campaigns to complete the migration. This sequence ensures that all data relationships are preserved, enabling a seamless integration of the acquired company's data into the Sales Cloud environment.