The strange campaign setting nobody was allowed to touch
In an imagined account review, the suspicious setting is discovered at 9:17. By 9:21, somebody has called it a mess. By 9:24, a rebuild has acquired the air of an emergency response.

About the author
PPC Specialist
Before I tell you about myself, I'd like to know why that unusual campaign setting is there.
There may be a good reason. There may be a bad reason. There may be a note from somebody who already investigated the question we're about to spend an afternoon investigating again.
I'm Ben Wightman, a PPC specialist with a fairly patient approach to accounts and a fairly impatient approach to ceremonial busywork. Search Without Noise is where I keep the questions, recollections and occasional grumbles that come out of that combination.
I like an account with a history you can read. Not necessarily a tidy history. A useful one. A record of what changed, why somebody changed it, what happened and what they still weren't sure about.
That record can save the next person from assuming every strange decision was a mistake.
When I look at an established campaign, I start by understanding the offer and the business's working arrangements. The person receiving enquiries may explain a setting faster than an hour of staring at it. The change history may reveal a problem that has since disappeared. The page may tell us a service operates differently from the way the account suggests.
I would like to know those things before recommending a rebuild.
This is not an oath to preserve old accounts forever. Some do need substantial work. I just want the intervention to solve a described problem, rather than provide a dramatic entrance for the newest consultant.
I keep context beside unusual weeks. A promotion, a stock change or a holiday can make a report look exciting. It may also make the following ordinary week a poor comparison.
I save the relevant setup before a substantial change. Memory becomes surprisingly creative when someone asks you to put a setting back late on a Friday.
I name the review point. A test without one has a habit of becoming an established arrangement simply because everyone got used to seeing it.
I write uncertainty down. The absence of an answer is useful information if the next person can find it.
The notes don't need to become a second job. If maintaining the record takes longer than understanding the change, we may have made another little system too elaborate.
I enjoy the ordinary investigative work: reading a search phrase in context, following the destination, asking why a certain enquiry is unsuitable, checking what the business actually promised.
There is plenty of interest in a small account when you let the details speak. I don't need every observation to become a universal principle for the internet.
You'll find some scepticism here about best-practice language. A sensible convention can be helpful. Shouting its name at a working system doesn't explain which problem it solves.
I also think quiet periods can be respectable. If the account is doing a clear job, the page is accurate and the business can handle the work, a review doesn't need to create six new tasks to justify itself.
The writing will sometimes sound grumpy. That is partly a style preference and partly a consequence of knowing how easily avoidable confusion gets passed to the next person.
I want colleagues to inherit understandable decisions. I want customers to find an offer that fits the business's actual arrangement. I want the report to distinguish a useful observation from a flattering story.
And, when somebody suggests rebuilding everything before reading the notes, I reserve the right to put my tea down and ask one more bloody question.

In an imagined account review, the suspicious setting is discovered at 9:17. By 9:21, somebody has called it a mess. By 9:24, a rebuild has acquired the air of an emergency response.

A strange campaign setting may be a mistake. It may also be a note from somebody who already learned the thing you're about to learn expensively.

A striking week can be useful to investigate without becoming the new target against which every ordinary week gets scolded.

A proper change has an exit route. Remembering the old setup is much easier before you've overwritten it and gone home.