How do I find out how a marketing agency handles campaigns that grow beyond the original quote?

Scope creep is easy to describe and hard to manage, so go to the paperwork. Ask to see a few signed quotes next to the final invoices. Gaps between them tell you how the agency actually behaves. Look for change requests in writing, a clear point where extra work needs sign-off, and whether the agency ever quietly did more for free.

Notice who decides. If the owner personally waves through extra work to keep a client happy, that habit may disappear, or become expensive, when you take over. If account managers follow a written process, the practice is easier to carry forward.

Ask the current staff how they raise it with a client. Some keep a running tally of extra hours; others find out at invoice time. Ask whether any client left or complained over a surprise bill. Finally, check how profitable the work really was. Time logs against quoted hours show whether growth in campaigns was paid for or simply absorbed. Also ask what the agency does when a client wants a campaign stopped midway, because the same habits usually decide how unplanned changes get handled in both directions. Jot down what you learn as you go, and take it to your adviser before deciding.

Key takeaways

• Compare signed quotes with final invoices on several past campaigns.
• Find out who decides on unpaid extra work, and whether it is written down.
• Ask staff and clients separately, then compare their stories.