Notes for owners · Channel and customer growth
A customer onboarding checklist for a service business, with an owner for every line
A working checklist for the first stretch after a service customer says yes: the reply, documents, kick-off, access and a first result, each with a named owner and a proof of done.
The GullySales team · Updated 17 Oct 2026 · 5 min read
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The contract is signed, the customer is pleased, and then the first week goes wrong in some small way nobody planned for: a gate that will not open for your van, a login that was never created, an invoice sent to the wrong person. Onboarding a service customer means carrying them from "yes" to the first agreed result. The tool for that is a checklist where every line has one owner and one proof of being done. The proof is what separates a checklist from a hope.
Who writes first, and what do they say?
On the first working day after the yes, the customer should hear from the person who will lead the account, not from the salesman who won it. Sales may introduce. The lead should write.
Four things go in that message: who you are, what happens next, what you need from the customer, and when you will speak. A line such as "I will call on Thursday at 11 to go through what we need from you; the list is below so you can start" does more than a paragraph of welcome. Repeat any promise made in the sale, such as a start date or a named supervisor, so it is on record. Leave out the sales pitch and the twelve-page manual.
The checklist, with its proofs
Copy this into a sheet, one row per customer.
| # | Step | Owner | Done when |
|---|---|---|---|
| 1 | First message sent with lead's name and call date | Account lead | Message sits in the thread |
| 2 | Signed order filed with start date | Sales | Copy in customer folder |
| 3 | GST details, invoice contact and signatory received | Accounts | Test invoice approved by the customer |
| 4 | One contact named on each side | Account lead | Two names and numbers in the folder |
| 5 | Kick-off held, notes sent after | Account lead | Customer acknowledges notes |
| 6 | Access arranged: gate pass, logins, keys | Operations | Your person has walked in and used it |
| 7 | First result agreed in one sentence | Lead and customer | Customer replies "yes, that" |
| 8 | First result delivered | Operations | Customer confirms |
| 9 | Review of the first result, next step fixed | Account lead | Date for next conversation set |
The last column is the discipline. Access is not arranged because you asked for it. It is arranged when your person has passed the gate.
What should the kick-off call cover?
Five questions, in the customer's words, with the answers written down. What does a good first result look like to you? Who deals with us, and who approves? What did earlier suppliers get wrong? Who else is affected, such as the security desk, the receiving clerk or the front-office staff? What worries you?
The fourth is easy to skip, and a customer's own gatekeepers are often the first to see a missed step.
The uniform supplier that was turned back at the gate
Here is an invented case: a firm in Chakan, near Pune, that rents and launders uniforms for factory workers. It won a plant on a three-year contract and planned the first delivery for Monday. The kick-off was a ten-minute call with the plant's HR manager, who had signed the order.
On Monday the van was stopped at the gate. Vehicles needed a pass raised by the plant's security office, and HR had assumed the supplier knew. The fresh uniforms for the new shift arrived the next afternoon. Two hundred workers started in their own clothes, and the HR manager was embarrassed in front of the plant head, who had sold the idea internally.
The firm added three questions to its kick-off: gate and vehicle rules, who signs for goods, and whether anyone in security needs to be told. It also added step six with its proof, "our person has walked in", so the first live delivery never doubles as the first test. The next plant had its pass before the contract began, though the extra questions added twenty minutes to every kick-off and one customer found them fussy.
Keeping it from turning into paperwork
Hold it to one page. Remove a line that has not caught a problem in three customers, and add one only after something has gone wrong, as the uniform firm did. The checklist exists to make the phone call shorter, not to replace it.
Give the account lead the right to waive a step in writing. A small customer on a one-off job does not need nine lines. A large one with several sites may need two more. For the longer view of how the first thirty days feed into the customer staying, creating a customer onboarding process goes further.
When the checklist is too heavy
If you take on a handful of customers a year and each is a close relationship, your own calendar is the checklist. Write the first three lines and no more. The structure earns its keep once more than one person is starting customers, because then the lines stop two people each assuming the other has called.
Test it on the last customer you signed
Take the customer you signed most recently and walk the nine lines against what really happened. Mark every line that has no proof, and fix those first. If you want help turning this into your own sheet, tell us what you need; the rest of keeping a customer sits under sales.
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