In Salesforce, lead source assignment refers to the process of automatically assigning a lead's source based on the channel through which the lead was acquired. This can help organizations understand which channels are most effective for generating leads and optimize their marketing and sales efforts accordingly.

For example, if a lead was acquired through a LinkedIn campaign, their lead source would be automatically assigned as "LinkedIn". Similarly, if a lead was acquired through a referral, their lead source could be assigned as "Referral".

Lead source assignment can be set up using Salesforce's lead assignment rules, which allow you to define criteria for automatically assigning leads to specific owners or queues based on various attributes, such as lead source, location, or industry.

By automating lead source assignment, organizations can save time and ensure that leads are properly categorized and routed to the appropriate sales or marketing teams. With a few clicks in Sweep, you can easily set up lead source assignment rules and streamline your lead management process.