A Google Ads script can be an excellent tool. It can also become a small unpaid software project sitting inside your ad account.
The difference often comes down to ownership. Someone needs to understand what it does, notice when it stops working, and decide whether its output still makes sense. A subscription changes parts of that responsibility, but it doesn't remove your need to understand the job.
I'd choose between scripts and PPC software by looking at the task, the people using it and the consequences of getting it wrong.
Start with the smallest useful job
“Automate my Google Ads account” leaves a lot of room for disappointment. “Create a weekly report of campaigns that meet these three conditions” gives you something you can inspect.
Write the job in one paragraph before comparing tools. Include the inputs, the result you expect, the frequency and what should happen if the data is missing. If you can't explain the manual version, adding code tends to make the confusion run on a schedule.
Here is the comparison I'd use:
| Decision | A script can fit when… | A software platform can fit when… |
|---|---|---|
| Scope | You need one specific, repeatable task | You need several connected workflows |
| Customisation | Your rules are unusual and you can maintain them | The product already supports the work you need |
| Ownership | Someone can inspect and fix the code | You need a vendor to maintain the product |
| Team use | A small number of people understand the setup | Several people need access, review and handover |
| Cost | The maintenance effort is manageable | The recurring fee is justified by the whole workflow |
These are selection criteria, not promises that every script or platform includes the same features. A managed script service can sit somewhere in the middle.
Use scripts for a bounded task you can verify
A report that flags accounts for attention is a useful place to start. The output is a list you can compare with the account, and you can keep the first version away from account-changing actions.
Imagine a hypothetical agency checking budget pacing each morning. A narrow script could collect the relevant spend, apply the team's agreed calculation and send a report. The account owner then decides what to do.
Before using it, agree on the account timezone, the reporting window, the treatment of shared budgets and what “missing data” looks like. Those details are part of the task. They are not decorative settings someone can figure out later.
Our scripts and automation directory includes resources such as Nils Rooijmans Scripts and Flowboost Script Library. Use them to find candidates, then check the documentation for the exact script you plan to run.
The runtime is a constraint, not a complete safety system
Google Ads scripts have execution limits. For advertiser accounts, Google documents a maximum runtime of 30 minutes and says changes made before cancellation remain applied. Manager-account scripts have different options, including a longer limit for a particular parallel-processing setup. Google Ads scripts limits.
That matters when evaluating a script that makes many changes. A timeout doesn't necessarily mean nothing happened, so you need a way to identify what finished before deciding how to rerun it.
Preview mode is useful, but read its boundaries too. Google explains that it prevents changes through AdsApp while calls to other services can still have effects. A preview is not a guarantee that no email will be sent or no external spreadsheet will be changed. Google's preview-mode documentation.
For your first trial, inspect the code's destinations, use a controlled account scope and verify the result. Keep the script's own instructions alongside your team's notes.
Pay for software when the surrounding workflow earns it
A platform becomes more interesting when the real problem is coordination. Perhaps three people need to review recommendations, a colleague needs to cover an account during leave, or the team wants one repeatable process across clients.
In a demo, ask the vendor to show those exact jobs. “Has automation” is too broad to be useful. Ask how access works, where changes are recorded, whether recommendations can require review, and what happens when a connection fails.
You can use the PPC management category to make a shortlist, including listings for Optmyzr, Opteo, Trueclicks and Adalysis. These are candidates to investigate, not a ranked comparison or a claim that all four offer identical workflows.
Bring your task to the demo. A vendor's clean example account is allowed to look clean. Your account has the naming conventions that survived three different account managers :D
Compare the total work, not just the invoice
Suppose, purely as a planning example, a script needs four hours to adapt and one hour a month to maintain. Over six months that is ten hours, before anyone reviews its output. A software trial should include its setup and review time as well.
You can make a simple worksheet:
- Setup time and who provides it.
- Recurring fee, including required plans or extras.
- Monthly checking and maintenance time.
- Time spent correcting bad or irrelevant recommendations.
- Handover effort if the owner changes.
Use your own assumptions for the value of that time. Don't count every automated action as a saving if someone still needs to undo half of them.
A script may still be the best fit. The point is to make its cost visible enough to compare.
Run the same trial for both options
Pick one representative account and one job you already understand. Keep a record of the expected output before you let either option produce a result.
Then check:
- Does it include the right accounts and campaigns?
- Are the date window and calculations correct?
- Can you explain why each item was flagged?
- Can someone else review the output without asking the original builder?
- What happens if access expires or part of the data is unavailable?
- Can you stop it, and can you find the changes it made?
For anything that changes the account, define the approval step and acceptable scope before enabling it. Increase that scope only after the result is reliable enough for the task.
A mixed setup can be perfectly sensible
You don't have to pick a side for the entire account. A focused script might produce a custom report while a platform handles a broader team workflow. Just document the boundaries so two systems don't try to manage the same thing independently.
If your current problem is simpler bulk editing or reporting, the free Google Ads starter kit may already cover it.
Choose the setup you can understand, maintain and hand over. The most impressive automation is fairly unhelpful when everyone is afraid to touch it.
