The solution is scalable and works great in the United States. Internationally, the solution purchased its own payroll partner so it operates differently. 

Scalability is rated a seven out of ten depending on the circumstances.  

I give the scalability of the solution a ten out of ten.

There is high scalability. We currently have around three hundred users.

It's quite scalable. The only inputs that ADP really needs are your master data and your regular time. But other than that, it's just processing the data, the payroll data to the extracts. It's not scalable for a multinational company. As I said, they don't do the international community very well. I know that they work through third parties to do that. So there's nothing within the Workforce Now product that will accommodate, like say doing business in the Netherlands versus doing business in Japan versus doing business in Taiwan. It just does not have that capability.

Currently, there are about 530 employees in our organization using this solution.

I rate the solution's scalability a nine.

No, but it is designed for small to mid-sized companies. It might be an issue for a bigger companies.

We did not have any scalability issues, at all.

It's very scalable. It doesn't matter what size of business you are. It would be fine. 

We have four users from payroll and finance. Two typically do payroll processing and those sorts of things, and the other two are more for finance and dealing with taxes. Those are their roles, and then I have administrators. There are two of us in HR who are working on it every day. I probably have 40 to 50 supervisor levels, and their primary function is approving time and correcting timecards. That's all they do in there.

We don't have plans to increase its usage. We use another system with employee records, and it doesn't do our payroll or time and attendance. So, we've probably reduced the usage of what we rely on ADP for, and I don't see that increasing in the future.

There were no scalability issues at all. I have been an ADP administrator for several different companies, both large and small, each with completely different needs and ADP WFN efficiently handles them all.

We encountered scalability issues: Some of the embedded audit tools (especially in the ACA module) do not have an ability to export data. This prevents end users from making large-scale changes. Imports are also based on company codes, which causes multiple loads.

No issues.