How to set a Connect field in Automation for Jira

To set a value in a Connect field using Automation for Jira, you need to use the “Edit Issue” action and set the field via the “More options” → “Additional fields” section:

The way the field is populated depends on:

Its category; Live or Snapshot.
Its type; Live Text, Live User or Snapshot Text.

Live Text

Single-value

{
     "fields": {
         "customfield_XXXXX": ["YYYYY"]
     }
}

Multi-values

{
     "fields": {
         "customfield_XXXXX": ["YYYYY","ZZZZZ"]
     }
}

You need to replace:

customfield_XXXXX with the Connect field name or ID.
YYYYY and ZZZZZ with valid Keys.

Live User

Single-value

{
     "fields": {
         "customfield_XXXXX": [{ "name": "username" }]
     }
}

Multi-values

{
     "fields": {
         "customfield_XXXXX": [{ "name": "username1" }, { "name": "username2" }]
     }
}

You need to replace:

customfield_XXXXX with the Connect field name or ID.
username with a valid username.

All usernames are listed in the User management section of Jira:

Snapshot Text

{
    "fields": {
        "customfield_XXXXX": "YYYYY"
    }
}

You need to replace:

customfield_XXXXX with the Connect field name or ID.
YYYYY with a valid value.

Specific cases

Populate a Live Text field based on another field

{
    "fields": {
        "customfield_XXXXX": {{issue.customfield_YYYYY.asJsonStringArray}}
    }
}

You need to replace:

customfield_XXXXX with the ID of the target Connect field.
customfield_YYYYY with the ID of the source Connect field.

Concatenate a new value with existing values for a Live Text field

{
    "fields": {
        "customfield_XXXXX": {{issue.customfield_XXXXX.asJsonStringArray.replace("[","").replace("]",",\"YYYYY\"").split(",").asJsonArray}} 
    }
}

You need to replace:

customfield_XXXXX with the Connect field ID.
YYYYY with the new Connect field key to be added.

Clear a Live Text field

{
    "fields": {
        "customfield_XXXXX": {}
    }
}

You need to replace customfield_XXXXX with the ID of the Connect field to be cleared.