The first mistake is asking for too much, too soon. HubSpot's analysis of more than 40,000 landing pages found that conversion falls as the number of fields rises — the widely reported reading is around 26% with three fields, dropping to about 22% with five and 14% with ten. Baymard's 2024 research tells a similar story from the other side: the average checkout carried 11.3 fields when most sites only needed about eight. Your enquiry form is not a job application. Name, email, and what they need is enough to start a conversation. Budget, timeline, and the rest can come in your reply, when they are already talking to you.