How can I make my JMeter test script reusable across different environments?

Question

I'm working with a JMeter test script where I need to use some pre-defined values (such as client_id, client_secret, scope, etc.) different for each request, that change depending on the environment (dev, QA, staging, prod).

Currently, these values are hardcoded into the script, which means every time I switch environments, I have to manually update the script — which is error-prone and not scalable.

What I’m looking for: A clean, maintainable way to make my JMeter script environment-agnostic so I can run it in any environment just by changing a config file or parameter — without editing the .jmx script itself.

Example Use Case:
For dev, I might use:
client_id = dev-client-id
scope 1  =  abc
scope 2  = def
...etc

For prod:
client_id = prod-client-id
scope 1  =  xyz
scope 2  =  vwx
like 50 of them
...etc

Ivan G · Accepted Answer · 2025-07-01 13:27:36Z

1

I can think of the following options:

Put these values into different .properties file like for dev it will be dev.properties, for QA - qa.properties, etc.

Once done you will be able to replace hardcoded values with __P() function calls. And when you will need to run a test against different environment you just feed the relevant .properties file to JMeter via -q command-line argument like:
```
jmeter -q dev.properties -n -t test.jmx ....
```
More information: Apache JMeter Properties Customization Guide
Alternatively you can define properties with prefixes somewhere in User Defined Variables like dev_client_id, qa_client_id, etc. and then specify this "prefix" in another User Defined Variables

answered Jul 1 at 13:27

Ivan G

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1 Comment

Nikhil Jul 3 at 9:10

Thanks Ivan its working fine for me. Adding that if this need to be run in GUI then Jmeter need to be run with this command jmeter -q dev.properties instead of opening it directly

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