Use this sequence when the product does not exist yet, or exists only as a rough build, and you need a small group of companies to shape it with you. It is not a sales sequence. The moment it starts to read like one, the people you want most will stop replying, because they have no budget line for something that is not launched.
Who to put in it
Aim for the person who owns the problem day to day, not the executive who signs for it. In a company of fifty to five hundred people that is usually a team lead or a head of function. Put two or three people from the same company in the campaign only if they sit in different teams that each feel the problem; otherwise one person per company is enough at this stage. The reasoning is covered in how many people to contact in one company.
Keep the list short. Thirty to sixty companies is plenty for a round, because you can only hold so many partner conversations a month.
What to change before sending
The problem_area field carries the whole sequence. Write it in the words the reader would use, not your product’s words, and check it in the To check queue before the first send so nobody receives a blank. Rewrite the third step’s promise (early access, fixed terms) to match what you can actually offer. If you cannot promise anything yet, say so and offer a summary of what you learn instead. More on fields and fallbacks in personalisation with snippets and custom fields.
How to read the replies and when to stop
A reply that describes the problem in detail, even without agreeing to a call, is a design-partner candidate. Reply personally and take them out of the sequence. A “send me more information” is usually a soft no from someone who does not feel the pain; answer once and move on. A referral to a colleague is a good outcome: start that colleague on step one with a line about who pointed you to them.
Stop after step four. If the round fills before the sequence ends, pause the campaign rather than letting the remaining steps ask for a place you no longer have.