An agency SLA, or service level agreement, is the part of an agency engagement that describes how the work will be run rather than what the work is. Response times, reporting cadence, who can change what, how problems escalate and how you leave. Without it, those things are decided by habit, and habits drift.
A good agency SLA is short and specific. It protects both sides, because the agency also knows exactly what it has committed to.
What an agency SLA should cover
Response times, by urgency. A broken tracking setup or a disapproved account needs a reply within hours; a question about next month's plan can wait a day. Define two or three levels and the channel for each, such as WhatsApp for urgent and email for routine.
Reporting cadence and content. What arrives weekly and monthly, what it contains, and which numbers lead. We would put spend, results, cost per result and the next action at the top; the weekly marketing report shows the format.
Account access and ownership. Ad accounts, pixels, analytics and landing pages stay in your name, with the agency given access. Write it down. The ad account access checklist lists every asset.
Change approval. Which changes the agency makes on its own judgement, such as daily optimisation, and which need your sign-off first, such as budget increases beyond an agreed range or a new landing page.
Escalation. Who you contact if the account manager is unresponsive or results fall below an agreed threshold, and how quickly that person responds.
Exit and handover. Notice period, what is handed over, how long access lasts after the end, and that the agency removes itself from your accounts cleanly. Leaving an agency cleanly covers the practical steps.
Performance guarantees in an agency SLA
Some agencies offer to guarantee a cost per lead or a return on spend in the SLA. Treat those carefully. An agency does not control your offer, pricing, website or sales follow-up, all of which decide results, so a guarantee is either hedged until it means little or priced high enough to cover the risk. Why ROAS guarantees are a red flag goes into this.
A fairer commitment is on process: the agency will test a stated number of new creatives a month, review search terms weekly, and report against an agreed target, with a review if results fall below it for two months running.
Keep the agency SLA short
Measure the SLA itself too. A simple monthly line in the report, such as urgent issues raised, median response time and any missed commitments, keeps both sides honest without anyone having to keep score informally.
One page is enough. A long SLA nobody reads is no better than none. Put it alongside the main contract, review it after the first three months, and adjust what does not fit. The marketing agency contract post covers the rest of the agreement.
Questions people ask before hiring
What is a marketing agency SLA?
A service level agreement that sets out how an agency engagement is run: response times, reporting, account access, change approval, escalation and exit. It sits alongside the contract that describes the work.
What response time should an agency SLA promise?
Different times for different urgency. Hours for problems that stop campaigns, such as tracking failures or disapprovals, and a working day for routine questions.
Should an agency SLA include performance guarantees?
Be cautious. The agency does not control your offer, site or sales follow-up. Commitments on process and a review trigger tied to an agreed target are usually fairer than a guaranteed result.
Who should own the ad accounts under an SLA?
You should. The SLA should state that ad accounts, pixels, analytics and landing pages are in your name, with the agency given access that it removes when the engagement ends.