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This section covers deploying a BPMN process and starting a new instance to verify the simple process works.
BPMN diagrams must be created for the process engine they’re deployed on. You cannot run a BPMN diagram modeled for ASEE Flow (Camunda Platform 7) on Camunda 8, or vice versa.

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Using the Camunda Modeler to deploy

Click the deploy button in the Camunda Modeler and provide the deployment name Payment Retrieval. You must supply a URL for endpoint configuration — either the root REST API endpoint (for example http://localhost:8080/engine-rest) or the exact deployment-creation endpoint (for example http://localhost:8080/engine-rest/deployment/create). Deploy from the Camunda Modeler Configure the deployment endpoint A success message should appear: Deployment success

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Verify the deployment with Cockpit

Navigate to http://localhost:8080/camunda/app/cockpit/ and log in with the credentials demo / demo. The deployed process appears on the dashboard. The deployed process in Cockpit

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Start a process instance

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Option A: using curl

curl -H "Content-Type: application/json" -X POST \
  -d '{"variables": {"amount": {"value":555,"type":"integer"}, "item": {"value":"item-xyz"} } }' \
  http://localhost:8080/engine-rest/process-definition/key/payment-retrieval/start

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Option B: using a REST client

Make a POST request to: 
http://localhost:8080/engine-rest/process-definition/key/payment-retrieval/start
with the JSON body: 
{
  "variables": {
    "amount": { "value": 555, "type": "integer" },
    "item": { "value": "item-xyz" }
  }
}
Make sure the header Content-Type: application/json is set. Start an instance with a REST client On successful execution, output appears in your worker console.

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Next step

To involve humans in your process, continue to learn about user tasks.