Estimate a Consulting Assignment When Client Inputs Are Still Missing
The client wants a proposal for a review of its operating processes. You know the intended report, but you have not seen the source material or established how many different processes the report must cover. Sending a single effort figure now would conceal the part that matters most to the estimate.
You can still give the client a useful next step. Separate the work you can describe from the inputs you have yet to inspect, then decide whether to give a bounded planning estimate, propose a defined discovery stage or defer the quote until an essential input is available.
Find out what decision the estimate must support
A sponsor asking whether an assignment is broadly affordable may need a planning range. A buyer deciding whether to accept a fixed scope and price needs a more developed basis. Ask which decision is due and when, so that you do not present an early estimate as a commitment ready for acceptance.
Define the output in practical terms. “Process review” might mean a description of current practice, a comparison across locations, recommendations, an implementation plan or all four. Specify the processes, teams and deliverables covered, along with the expected review rounds and anything outside the assignment.
APM's scope management guidance includes documenting assumptions and clarifying boundaries. Its estimating guide sample chapter treats estimates as work that develops as information becomes available. The practical method below applies those ideas to a fictional consulting enquiry; the effort figures are illustrative.
Give every material assumption a way to be checked
Create a basis-of-estimate sheet. For each output, record the source material or access needed, what you have actually inspected, the assumption used and how a different answer would affect the work.
Avoid “client to provide data” as a single catch-all condition. Distinguish an absent file from a file whose quality or coverage is unknown. Identify who can supply a useful sample and what that sample needs to establish. Use material the organisation has approved for this purpose; an early estimate rarely needs unrestricted access to its full operational records.
Here is the starting sheet for a fictional consultancy reviewing regional reporting processes:
| Work item | Evidence currently available | Assumption being tested | Owner and validation condition | Effect if the assumption fails |
|---|---|---|---|---|
| Current process description | Sponsor's outline only | One common process across three regions | Client operations lead provides each region's process outline | Separate analysis by variant; reconsider coverage |
| Source review | One blank export template | Regional exports have the same structure and definitions | Client reporting lead supplies approved representative samples | Assess additional comparison or preparation work |
| Interviews | Four roles named | Four interviewees cover the agreed review | Sponsor confirms coverage and availability | Reassess coverage, interview effort and schedule |
| Recommendations | A report outline | One consolidated client review round | Sponsor confirms the reviewer and approval route | Estimate additional review rounds separately |
Expand the effort-effect column once you can estimate the additional work. Different regional processes may require separate analysis; unavailable interviewees may move the schedule. Record the relationship before adding a generic allowance to the total.
Select the next commercial step
A planning estimate is useful when the buyer understands its purpose and the unresolved assumptions are visible. State the work covered, the basis for the range, the material exclusions and what evidence is required before a firm proposal. Choose the range from the assignment's actual uncertainties rather than applying an unexplained percentage.
A defined discovery stage is useful when obtaining and examining the missing information is itself meaningful work. Describe its inputs, activities and outputs, the effort or fee, the client's responsibilities and the decision at its end. If it is paid work, agree that commercial arrangement explicitly before starting it. Discovery should produce something the client can use, such as a process inventory and a revised scope, rather than simply another sales meeting.
Deferring the quote may be appropriate when one essential item is expected shortly and there is little useful work to do without it. Explain which item is missing and why it changes the estimate. Keep the next action tied to that dependency.
Resolve the fictional enquiry
The consultancy's initial internal estimate is six consultant days: one for preparation, two for interviews, two for analysis and one for recommendations. That estimate assumes a shared regional process and comparable exports. The team has not offered it as a fixed commitment.
The sponsor cannot confirm those assumptions and needs to decide how much of the regional operation to include. Both sides agree to a separate two-day discovery: half a day to assemble and inventory approved samples, one day to examine process differences and half a day to prepare scope options. Its deliverables are the inventory, a comparison of the regional variants and revised effort estimates.
Discovery identifies three distinct regional processes. Reviewing all three would require eight further consultant days: one for preparation, two for interviews, four for analysis and one for recommendations. Including the completed two-day discovery, that route would involve ten days in total. The discovery effort is separate and is not hidden inside the new execution estimate.
The sponsor chooses a narrower assignment covering one region first. Its six-day execution estimate retains one preparation day, two interview days, two analysis days and one recommendations day. With the two discovery days already completed, the combined effort is eight days. The other regions are expressly outside this assignment.
The revised proposal names the selected region, the inspected inputs, the four interview roles and the single consolidated review round. The sponsor confirms those boundaries and the input owners. The consultancy can now offer a defined assignment whose estimate follows the evidence, rather than implying that its original six-day assumption covered every regional variant.
Make the estimate retrievable with the opportunity
Keep the basis sheet, supporting sample references and chosen scope beside the commercial discussion. Give the estimate a date and identify the person responsible for it. A colleague should be able to explain which inputs were checked and which conditions still need confirmation.
When evaluating Konekt CRM, try that retrieval task with a fictional opportunity. Ask how your intended configuration would keep the current estimate basis and client decision accessible to the right colleagues, and verify the relevant plan and access. Keep the effort calculations in a separate document until your intended calculation workflow has been demonstrated.
Before moving the opportunity forward, read the proposed assignment against the basis sheet. If an unresolved input could still change the core work substantially, choose an explicit validation step. The buyer should be able to see what it is being asked to approve and what remains to be decided.