When the marketing site and the CRM are built by different people at different times, the seam between them is where leads get lost.
Marketing commissions the website. Sales owns the CRM. They are bought at different times, from different vendors, with different goals. The seam between them is where leads get lost.
The handoff is where attribution dies
If a form submission arrives in an inbox rather than a pipeline, you lose the source, the campaign, and the timing. Six months later nobody can say which channel actually produced revenue, so budget decisions get made on instinct.
Duplicate records start on day one
The same person enquires twice, downloads a guide, and books a call. Without a shared identity layer, that is three records and three half-conversations instead of one relationship.
Response time quietly slips
Leads that get a reply within an hour convert dramatically better than ones answered the next day. Automatic routing from the site straight into the right person's queue is the single highest-leverage fix most teams are missing.
What building them together looks like
One data model. Forms that write directly into the pipeline with source and campaign attached. Routing rules that assign an owner instantly. Dashboards that trace revenue back to the page that started it. None of this is exotic — it just has to be designed once, deliberately, rather than bolted on afterwards.