What belongs in a marketing agency contract in Vietnam
Vũ Kỳ AnhFounder, MWY Consulting
Short answer
Five things decide whether the agreement is usable a year later: who owns the advertising accounts and the data, what the fee covers and what is billed on top, how each reported number is defined, which decisions need the client to approve them, and what happens at handover. Everything else in a marketing services agreement is standard commercial drafting. These five are the ones that are cheap to write at the start and expensive to argue about afterwards.

Most marketing services agreements I see are competently drafted. They cover liability, confidentiality, payment terms and termination, and a lawyer has been through them.
They also, very often, leave the client unable to answer a simple question eighteen months in: what exactly do we own here, and what would we take with us if this ended tomorrow.
That gap is not a drafting failure. It happens because the clauses that decide it are operational rather than legal, so they fall between the lawyer, who is not going to specify how a conversion is counted, and the marketing team, who are not reading the contract.
There are five of them.
Clause 1: who owns the accounts, the data and the work
This is the clause with the widest gap between cost-at-the-start and cost-later.
The advertising accounts, the analytics property, the business page and any customer list built during the engagement should be held by the client, with the agency granted access as a user. Setting this up at the beginning takes an afternoon. Unwinding it later is slow, and some of it cannot be unwound at all — campaign history and platform learning are attached to the account, and they do not move with an export.
Three items are worth naming explicitly rather than leaving to a general intellectual property clause:
- Creative and source files, not only the finished assets. Final files without the editable originals means the next team rebuilds rather than adapts.
- Tracking configuration, including any server-side setup. This is often built by the agency inside the client's property, and it is the part that breaks silently when access changes.
- Anything the agency holds on the client's behalf, including platform seller accounts where a partner was appointed for practical reasons.
For a foreign company, the last point deserves particular attention, because arrangements made for speed at entry tend to quietly become permanent. The wider version of that problem sits under Vietnam market entry.
Clause 2: what the fee covers, and what is billed on top
Disputes about money in these relationships are rarely about the headline number. They are about the boundary of the headline number.
A usable fee clause answers three questions without needing an email thread:
- What volume of work is included. Number of campaigns, number of creative variants per month, number of reporting cycles. Not hours, which nobody tracks honestly on either side, but countable outputs.
- What triggers additional billing. A new channel, a new market, a campaign outside the agreed calendar, production beyond a stated volume.
- Who pays the platforms. Whether media spend flows through the agency or directly from the client, and if through the agency, what the reconciliation looks like and how often.
That last point is worth settling in writing even when the amounts are small. Media passing through a third party with monthly reconciliation is a normal arrangement; the same arrangement without a stated reconciliation cadence is where the client stops being able to tie spend back to invoices.

Clause 3: reporting definitions, in an annex
This is the clause almost nobody includes, and the one that prevents the largest category of future argument.
Somewhere in the agreement, preferably as an annex that can be updated without renegotiating the whole contract, there should be one line per reported metric saying what it counts and what it excludes. A conversion, a lead, a qualified lead, revenue, a return on ad spend.
Without it, both sides use the same words for different things for months, and the discovery usually happens in the worst possible meeting. Cash on delivery makes this sharper here than in markets where payment and order are the same event, because an order and money are separated by days and by a failure rate. Two people can both be right about revenue and be describing numbers that differ by a quarter. The mechanics of that gap are covered under marketing measurement.
The annex should also state which system is the source for each number. Not "our dashboard", but which underlying account, and who has access to check it.
Clause 4: which decisions need the client to approve them
The purpose of this clause is not control. It is to prevent the slow migration of decision rights that happens when nobody writes them down.
It should be specific enough to apply without interpretation:
| Decision | Threshold worth stating |
|---|---|
| Moving budget between channels | Above a stated share of the monthly budget |
| Adding or dropping a channel | Always |
| Changing target audiences materially | Always |
| Publishing anything using the brand name outside agreed assets | Always |
| Changing the measurement configuration | Always, and notified in writing |
The last line is the one most often missing and the most consequential. A measurement change made in good faith, for a good reason, at the wrong moment, makes every month before and after it incomparable. If it has to be announced, it will be timed better.
Clause 5: exit and handover
Every agreement has a termination clause. Very few have a handover clause, and they are not the same thing.
A notice period says when the relationship ends. A handover clause says what has to be true on the last day. The second one is what determines whether the next twelve months start from a standing position or from zero.
A workable handover list is short:
- Administrative access transferred on all accounts, with the client's own administrator confirmed before agency access is removed.
- Creative source files delivered, in editable formats.
- Tracking configuration documented, at the level of what fires where.
- A written summary of what has been learned: what worked, what did not, and which tests are still running. One page.
- A named person available for a defined number of hours after the end date for questions.
Attach that list to the notice clause. It costs nothing while the relationship is good, and it is unobtainable once it is not.
Two details make the difference between a handover clause that works and one that reads well. The first is sequencing: the client's own administrator should be confirmed on every account before the agency's access is removed, not after. Doing it in the wrong order has locked companies out of their own advertising accounts for weeks, and platform support is slow to resolve ownership disputes.
The second is that the handover window should start before the last day of service, not on it. Campaigns are still running during the notice period and still spending money. If the transfer of access is scheduled to coincide with the end of the contract, there is a gap in which nobody is clearly responsible for live spending — short, but expensive, and entirely avoidable by moving the access date a few days earlier.

A one-page annex does more work than a longer contract
The five clauses above do not need to make the agreement longer. Most of what matters fits on a single annex that can be updated by agreement without reopening the contract, which is also the reason it gets kept current.
A workable annex has four blocks:
- Assets and access. Every account and property by name, who owns it, who administers it, who has access today. One line each. This is also the document that tells you, in an emergency, what to change the passwords on.
- Definitions. One line per reported metric: what it counts, what it excludes, which system is the source.
- Approvals. The threshold table, with a named approver on the client side rather than a role that may be vacant.
- Handover. The checklist that has to be complete on the last day.
Reviewing that annex takes twenty minutes a quarter. Reviewing a fifteen-page agreement takes an afternoon nobody schedules, which is why the terms drift away from what is actually happening.
The annex also survives changes of personnel on both sides, and that is most of its value. Agreements are signed by people who leave. The document that tells the next person what was agreed, in operational terms, is worth more than the one that tells them what the liability cap was.
If the agreement is already signed
Most companies asking this question are not drafting from scratch. They have an arrangement running, and it was set up quickly during entry by people who have since moved on.
The useful move there is not renegotiation. It is a short written exchange that establishes the same facts without opening the commercial terms:
- Ask for the asset and access list, and check it against reality rather than against the reply. Log into each account and look at the administrator list.
- Ask for the definitions, one line per metric in the monthly report. This request is rarely refused and frequently reveals that two numbers in the same report come from different systems.
- Propose the approval thresholds as a working practice rather than a contract change. Agencies generally welcome a written threshold, because it also protects them from being blamed for a decision that was never escalated.
- Ask what handover would involve, framed as continuity planning rather than as a signal. Any professional relationship can answer this without alarm, and the quality of the answer is itself informative.
Where any of those reveals a gap, it can usually be closed by a side letter at renewal rather than a renegotiation mid-term.
Two clauses foreign companies add that tend not to help
Two provisions arrive regularly in agreements drafted at head office and rarely earn their place.
Broad exclusivity. A clause preventing the agency from working with anything adjacent sounds protective. In a market where the strongest specialists in a category often serve several brands within it, a wide exclusivity clause mostly narrows the field of who will sign, and it is difficult to enforce at the level that would actually matter.
Penalties tied to performance numbers. Financial penalties attached to metrics create pressure on the metric rather than on the outcome, and the metric is usually produced by the party being penalised. If the reporting definitions are not settled and independently checkable, a penalty clause makes the measurement problem worse rather than creating accountability.
Neither is objectionable in principle. Both tend to be added in place of a review process, and neither substitutes for one.
What a contract cannot do
A well-drafted agreement does not make a relationship work. It determines what happens when it stops working, and it removes a set of arguments from the weekly reality of the engagement.
What it cannot do is supply judgement. Nothing in the five clauses above tells the client whether the strategy is right, whether the spending is being allocated well, or whether the numbers in the monthly report describe something real. Those require somebody on the client's side reading the report with enough context to ask the second question.
For a company running Vietnam from another country, that capability is usually the thing that is missing, and it is not a gap a contract can close.
Where this work stops
This is not legal advice, and nothing here replaces local counsel. Governing law, language of record, tax treatment and enforceability are questions for lawyers, and the answers may change how the commercial terms are structured.
What sits on the marketing side is narrower: defining the operational annexes so that oversight is possible at all. Reporting definitions, account ownership, approval thresholds and the handover list are marketing documents that happen to live inside a legal agreement.
Establishing those definitions from scratch, and checking what the current arrangement actually provides, is part of a digital marketing audit. Sitting on the client's side of the review meeting afterwards, and asking the second question month after month, is what advisory and oversight is for.
Common questions
Who should own the advertising accounts, the client or the agency?
The client, in every case, with the agency granted access as a user. This is straightforward to arrange when accounts are created and awkward to unwind later, because campaign history and learning stay attached to the account rather than transferring with a file. The same applies to the analytics property, the business page and any customer list built during the engagement.
Is a percentage-of-spend fee a bad structure?
It is not bad, it is simply explicit about what it rewards, which is spending more. A fixed retainer rewards efficiency and can under-serve a fast-growing account. Neither is wrong; what matters is that the structure is stated plainly and that the review process compensates for whatever it does not reward. Problems come from structures nobody has named out loud.
What notice period is reasonable?
Thirty to sixty days is common, but the number matters less than what has to happen inside it. A notice period without a defined handover list means the countdown runs while the client works out what to ask for. Attaching the handover checklist to the notice clause turns a date into a process.
Should the contract set performance targets?
It can, provided the targets use numbers both sides can verify from the same source. Targets built on figures only one side can produce turn every review into a discussion about the measurement rather than the performance. If the reporting definitions are not settled, settle those first and add targets at the next renewal.
Does a foreign company need a Vietnamese-language version of the contract?
Language and governing-law questions belong with local counsel, not with a marketing plan. What the marketing side should insist on is that the operational annexes — the reporting definitions, the account ownership list and the handover checklist — say the same thing in both versions, because those are the parts that get used weekly.
More on Agency
- How to oversee a marketing agency in Vietnam
Foreign companies usually pick a capable agency. What goes wrong is set up in the first month, in decisions that look administrative at the time.
Is this your problem?
Thirty minutes, no fee. Bring real numbers and the call will be far more specific than the article.