SOW

Two documents do two jobs and conflating them causes trouble in both directions. The master services agreement governs the relationship: liability, confidentiality, intellectual property, payment terms, termination, data protection. It is signed once and rarely revisited.

The statement of work governs one piece of work inside that relationship: what is being produced, by when, by whom, for how much. There can be several, and each should be able to stand on its own.

Putting commercial detail in the MSA makes it hard to change, since amending it reopens the whole agreement. Putting legal terms in every SOW means renegotiating liability every time somebody buys a landing page.

For a retainer the distinction is often skipped, which is where the trouble starts. A retainer without a SOW-equivalent describing the monthly scope is a recurring invoice with no definition attached, and every month is an opportunity to disagree about what it covers.

Almost every agency project depends on things the agency does not control: brand assets, access to systems, copy approval, a technical contact, sign-off from somebody who is on holiday. Those dependencies exist whether or not they are written down. Writing them down changes who is accountable when they slip.

A line saying the client provides brand assets within five working days of kickoff costs one sentence. Without it, a two-week delay waiting for a logo is an agency running late. With it, the same delay is a documented dependency, raised in week one, with the timeline adjusted accordingly.

The habit worth building is to write the assumptions after the plan rather than before, by asking what has to be true for this to work. Every answer is an assumption, and the ones that would be embarrassing to depend on silently are exactly the ones to write down.

It is also the least confrontational part of a SOW to negotiate. Clients rarely object to a list of things they need to provide, because it reads as organisation rather than as a defence, which it is.

A list of what is included leaves everything adjacent arguable. Does a website project include the copy. Does a campaign include the landing page. Does a report include a meeting to talk through it. Each of those has a reasonable answer in both directions, and the argument is always had at the point where it is most expensive to have.

Naming a handful of exclusions is quicker than it sounds and does most of the work: copywriting not included, hosting and domain not included, photography not included, translation not included. Nobody objects to clarity at the proposal stage.

Acceptance criteria are the other half and the one most often missing entirely. Without a definition of done, a deliverable remains open indefinitely, and the usual failure is not an unreasonable client but an unhappy one who cannot articulate what is wrong.

Revision rounds are the practical form of this. Two rounds included, further rounds at an hourly rate, is a normal sentence that converts an unbounded obligation into a priced one, and it gives the client a reason to consolidate feedback rather than send it in six instalments.

The assumption is only half the protection. The other half is stating the consequence, because a dependency that slips without a stated consequence becomes an agency problem by default.

The clause is simple and worth having: if a dependency is late, the timeline moves by at least the length of the delay, and the agency will confirm the revised dates. That does two things. It prevents the expectation that the team will compress its own work to absorb somebody else lateness, and it makes the revised date an explicit communication rather than a silent slip.

At least is doing real work in that sentence. A three-day delay rarely costs three days, because the team has been reassigned and has to be scheduled back in. Saying so in advance is far easier than explaining it afterwards.

The other clause worth having covers the stalled project: work paused for more than a stated period may be rescheduled or re-quoted. Projects that go quiet for two months and then resume with the original deadline are common, and without that clause the agency absorbs the entire cost of the pause.