# Problem launching Gatling simulation with 1 user for 1 iteration
**URL:** https://community.gatling.io/t/problem-launching-gatling-simulation-with-1-user-for-1-iteration/9215
**Category:** Gatling (Open-Source)
**Created:** [August 5, 2024, 8:18pm UTC](https://community.gatling.io/t/problem-launching-gatling-simulation-with-1-user-for-1-iteration/9215 "2024-08-05T20:18:26Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Timmer](https://community.gatling.io/u/Timmer)
#### Post date: [August 5, 2024, 8:18pm UTC](https://community.gatling.io/t/problem-launching-gatling-simulation-with-1-user-for-1-iteration/9215/1 "2024-08-05T20:18:26Z")
**Gatling version** : 3.11.5 (must be up to date)
**Gatling flavor** : [X] java kotlin scala javascript typescript
**Gatling build tool** : [X] maven gradle sbt bundle npm
Hello,
I am trying to launch a Gatling script with 1 user for 1 iteration to verify the script itself.
While I am trying to verify all the requests are working, I want to run a single user(I have a feeder with 1 record) and to run through all of the requests just once and then stop.
Have been searching the community and internet without seeing the complete solution to this problem.
I have the following scenario and setup:
```
private ScenarioBuilder stpScenario = scenario("ChainNonHarSTPFullCurated")
.feed(singleUserName)
.exec(rqrLogon,
startNewQuote,
agencyInformation,
tellUsMore,
coverageDetails,
classCodeLookup,
operationDescription,
accordQuestions,
lossClaimsHistory,
quoteDetailAndOptions,
locations,
addContact,
ownershipAndOfficers,
addNumEmployees,
bindAutoIssue,
exitApplication
);
{
setUp(
stpScenario.injectOpen(atOnceUsers(1)).protocols(httpProtocol));
}
```
Timmer
---
### Author:  [@slandelle](https://community.gatling.io/u/slandelle)
#### Post date: [August 6, 2024, 8:51am UTC](https://community.gatling.io/t/problem-launching-gatling-simulation-with-1-user-for-1-iteration/9215/3 "2024-08-06T08:51:57Z")
@trinp No, protocols can also be specified per scenario. This is useful when you have multiple scenarios and want them to have different protocols settings.
---
### Author:  [@slandelle](https://community.gatling.io/u/slandelle)
#### Post date: [August 6, 2024, 8:52am UTC](https://community.gatling.io/t/problem-launching-gatling-simulation-with-1-user-for-1-iteration/9215/4 "2024-08-06T08:52:46Z")
> While I am trying to verify all the requests are working
You could use an assertion and fail if the error counts is not 0.
> I want to run a single user(I have a feeder with 1 record) and to run through all of the requests just once and then stop.
This is exactly what you’re doing. What’s your issue?
---
### Author:  [@Timmer](https://community.gatling.io/u/Timmer)
#### Post date: [August 6, 2024, 10:17pm UTC](https://community.gatling.io/t/problem-launching-gatling-simulation-with-1-user-for-1-iteration/9215/5 "2024-08-06T22:17:51Z")
Hey Slandelle,
You are correct. It was only processing 1 user and only 1 iteration.
The application I am testing has a lot of resource calls so I thought it was repeating.
Thank you,
Timmer
---
### Author:  [@system](https://community.gatling.io/u/system)
#### Post date: [September 5, 2024, 10:18pm UTC](https://community.gatling.io/t/problem-launching-gatling-simulation-with-1-user-for-1-iteration/9215/6 "2024-09-05T22:18:42Z")
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