Write ICP exclusion criteria before buying a prospect list
Define buyer-fit requirements, exclusions and unknowns with evidence so an ideal customer profile does not become a vague list of attractive traits.

Which conditions are genuinely required?
Define fit around the job you can deliver and the conditions it needs. An organization can look attractive by industry or size and still lack the data, authority or implementation capacity required for the project. A useful exclusion explains a delivery mismatch rather than labeling a group undesirable without evidence.
The fit sheet below is an original operational method. If it becomes an intake form, WAI’s labeling guidance supports clear associated labels for each requested value. That interface guidance does not validate the business criteria; the owner still needs to approve which requirements are real. [Labeling controls]
A completed buyer-fit sheet
Illustrative offer: a reporting cleanup project that requires an approved data export, an accountable internal owner and agreement on the reporting question. This is a fictional service scope for the worksheet, not a description of an offer or price on this site.
| Criterion | Type | Acceptable evidence |
|---|---|---|
| Can provide the required export | Must have | A permitted sample with needed fields |
| Has an internal decision owner | Must have | Named role confirms responsibility |
| Wants a guaranteed revenue outcome | Exclusion for this scope | Request remains incompatible after clarification |
| Uses the preferred spreadsheet format | Preference | Confirmed workflow; alternatives may be possible |
| Can authorize source access | Must have | Appropriate approval for the relevant data |
| Timing fits delivery capacity | Needs confirmation | Agreed schedule, not an inferred urgency score |
A preference can guide prioritization among eligible requests. It cannot compensate for missing authority or a fundamentally incompatible promise. Keep hard conditions visible outside any weighted score so a neat total does not hide the reason the project cannot proceed.
How should an uncertain record be handled?
| Record | Evidence | Decision |
|---|---|---|
| Company A | Export and owner confirmed; scope understood | Eligible for the next review |
| Company B | Owner unknown; export not yet inspected | Needs clarification, not rejected |
| Company C | Requires an outcome guarantee outside the scope | Decline this scope or propose an approved alternative |
| Company D | Preferred format absent; valid alternative confirmed | Eligible despite a preference mismatch |
Unknown is different from no. A missing field in a database can mean the research has not been done. Do not classify every incomplete record as poor fit or fill the gap with a guess from company size. Ask the narrow question needed to resolve the condition when contact is authorized.
What makes an exclusion defensible?
- It connects to a real delivery, scope, authority or capacity constraint.
- The condition can be checked from appropriate evidence.
- The reason is understandable to the team applying it.
- An exception has a defined approval route rather than an informal score override.
- The criterion has a review trigger when the service changes.
Avoid using inferred personal characteristics as a shortcut for business fit. Keep the worksheet focused on the project’s relevant conditions. If geography matters because the service is unavailable in a market, record the actual service boundary rather than inventing a broad claim about buyers from that location.
Can another person reproduce the decision?
The completed sheet should let a colleague explain why a request advances or stops. If the answer is merely “the score was low,” inspect the underlying conditions. A useful ideal customer profile supports a reviewable next action rather than replacing judgment with a list of fashionable attributes.
Sources
AI-assisted writing and an AI-generated editorial cover. Source links and checked dates are listed below; illustrative examples are labeled in the text.
- Labeling controls — checked 2026-10-18