> For the complete documentation index, see [llms.txt](https://docs.planetcrust.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.planetcrust.com/mailchimp/mailchimp/action-add-update-upsert-member.md).
# Action: Add/Update (upsert) Member
Mailchimp Operation
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The List Members action enables users to update an existing member in a specific list in Mailchimp.
{% embed url="" %}
#### Example User Story
As a marketing manager, I want to update a subscriber's details in a Mailchimp list so that I can keep the contact information current and relevant for email campaigns.
#### Fields
| Field Name | Field Type | Required |
| ---------------------- | ---------- | -------- |
| list\_id | String | Yes |
| subscriber\_hash | String | Yes |
| email\_address | String | No |
| status | String | No |
| merge\_fields | Object | No |
| interests | Object | No |
| language | String | No |
| vip | Boolean | No |
| location | Object | No |
| marketing\_permissions | Array | No |
| ip\_signup | String | No |
| timestamp\_signup | String | No |
### Related Connections
### Related Automations
Example link
### Code (Apache v2.0): Operation
```
{
"handle": "update-list-member",
"state": "inDev",
"meta": {
"short": "Update List Member",
"description": "Update an existing member in a Mailchimp list."
},
"input": [
{
"name": "list_id",
"type": "String",
"required": true,
"meta": {
"description": "The unique ID for the Mailchimp list."
}
},
{
"name": "subscriber_hash",
"type": "String",
"required": true,
"meta": {
"description": "The MD5 hash of the lowercase version of the list member's email address."
}
},
{
"name": "email_address",
"type": "String",
"required": false,
"meta": {
"description": "Email address for the subscriber."
}
},
{
"name": "status",
"type": "String",
"required": false,
"meta": {
"description": "Subscriber's status (e.g., 'subscribed', 'unsubscribed', 'cleaned', 'pending').",
"options": ["subscribed", "unsubscribed", "cleaned", "pending"]
}
},
{
"name": "merge_fields",
"type": "Object",
"required": false,
"meta": {
"description": "Merge fields for the subscriber."
}
},
{
"name": "interests",
"type": "Object",
"required": false,
"meta": {
"description": "Interests for the subscriber."
}
},
{
"name": "language",
"type": "String",
"required": false,
"meta": {
"description": "Subscriber's language preference."
}
},
{
"name": "vip",
"type": "Boolean",
"required": false,
"meta": {
"description": "VIP status for the subscriber."
}
},
{
"name": "location",
"type": "Object",
"required": false,
"meta": {
"description": "Location information for the subscriber."
}
},
{
"name": "marketing_permissions",
"type": "Array",
"required": false,
"meta": {
"description": "Marketing permissions for the subscriber."
}
},
{
"name": "ip_signup",
"type": "String",
"required": false,
"meta": {
"description": "IP address the subscriber signed up from."
}
},
{
"name": "timestamp_signup",
"type": "String",
"required": false,
"meta": {
"description": "Sign-up timestamp for the subscriber."
}
}
],
"output": [
{
"name": "id",
"type": "String",
"selector": ["id"],
"meta": {
"description": "The unique ID for the member."
}
},
{
"name": "email_address",
"type": "String",
"selector": ["email_address"],
"meta": {
"description": "The email address for the member."
}
},
{
"name": "status",
"type": "String",
"selector": ["status"],
"meta": {
"description": "The status of the member."
}
}
],
"steps": [
{
"type": "http",
"http": {
"method": "PUT",
"path": "/lists/{{list_id}}/members/{{subscriber_hash}}",
"headers": {
"Content-Type": "application/json"
},
"bodyTemplate": {
"value": "{\"email_address\":\"{{email_address}}\",\"status\":\"{{status}}\",\"merge_fields\":{{merge_fields}},\"interests\":{{interests}},\"language\":\"{{language}}\",\"vip\":{{vip}},\"location\":{{location}},\"marketing_permissions\":{{marketing_permissions}},\"ip_signup\":\"{{ip_signup}}\",\"timestamp_signup\":\"{{timestamp_signup}}\"}",
"placeholders": [
{
"name": "email_address",
"type": "String",
"description": "Email address for the subscriber.",
"required": false
},
{
"name": "status",
"type": "String",
"description": "Subscriber's status.",
"required": false
},
{
"name": "merge_fields",
"type": "Object",
"description": "Merge fields for the subscriber.",
"required": false
},
{
"name": "interests",
"type": "Object",
"description": "Interests for the subscriber.",
"required": false
},
{
"name": "language",
"type": "String",
"description": "Subscriber's language preference.",
"required": false
},
{
"name": "vip",
"type": "Boolean",
"description": "VIP status for the subscriber.",
"required": false
},
{
"name": "location",
"type": "Object",
"description": "Location information for the subscriber.",
"required": false
},
{
"name": "marketing_permissions",
"type": "Array",
"description": "Marketing permissions for the subscriber.",
"required": false
},
{
"name": "ip_signup",
"type": "String",
"description": "IP address the subscriber signed up from.",
"required": false
},
{
"name": "timestamp_signup",
"type": "String",
"description": "Sign-up timestamp for the subscriber.",
"required": false
}
]
}
}
}
]
}
```
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