Mapping of priority

To map priority to other systems prio use a groovy variable.

In this case we will send 1-kristisk when High is used to BC Jira.

def prio = ""
switch(issue.priority.name){
  case "High":
    prio = "1-kritisk"
    break;
  case "Medium":
    prio = "2-medium"
    break;
  default:
    prio = "Low"
    break;
  
}
return prio

Access the variable in your Action body

{
    "fields": {
        "project": {
            "id": "10100"
        },
        "summary": "{{issue.summary}}",
        "issuetype": {
            "id": "10001"
        },
        "priority":{
            "name":"{{BC_PRIO}}"
        },
        "labels": [
            "from_testsup"
        ],
        "description": "{{issue.description}}",
        "customfield_10600": "{{issue.customfield_10703}}",
        "customfield_10201": "{{issue.key}}"
    }
}