> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mercurjs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Add Seller Member

> Add an existing member to a seller's team.

Links an existing member to the seller with the given role.

<Note>
  To add someone who does not have a member record yet, use [Invite Seller Member](/rc/references/api/admin/sellers/invite-seller-member) instead.
</Note>

## Path parameters

<ParamField path="id" type="string" required>The seller's ID.</ParamField>

## Body parameters

<ParamField body="member_id" type="string" required>ID of the existing member to add.</ParamField>
<ParamField body="role_id" type="string" required>ID of the role to assign.</ParamField>

## Response

<ResponseField name="seller_member" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string">The seller member's ID.</ResponseField>
    <ResponseField name="seller_id" type="string">ID of the seller.</ResponseField>
    <ResponseField name="member_id" type="string">ID of the linked member.</ResponseField>
    <ResponseField name="is_owner" type="boolean">Whether this member owns the seller account.</ResponseField>
    <ResponseField name="created_at" type="string">Creation timestamp.</ResponseField>
  </Expandable>
</ResponseField>

<RequestExample>
  ```bash cURL theme={null}
  curl -X POST 'http://localhost:9000/admin/sellers/sel_01HXYZABCDEF/members' \
    -H 'Authorization: Bearer <token>' \
    -H 'Content-Type: application/json' \
    -d '{"member_id": "mem_01HXYZMEMBB", "role_id": "role_01HXYZROLEAA"}'
  ```

  ```ts JS Client theme={null}
  const { seller_member } = await client.admin.sellers.$id.members.mutate({
    $id: "sel_01HXYZABCDEF",
    member_id: "mem_01HXYZMEMBB",
    role_id: "role_01HXYZROLEAA",
  })
  ```
</RequestExample>

<ResponseExample>
  ```json 201 theme={null}
  {
    "seller_member": {
      "id": "selmem_01HXYZSMBB",
      "seller_id": "sel_01HXYZABCDEF",
      "member_id": "mem_01HXYZMEMBB",
      "is_owner": false,
      "created_at": "2026-06-15T09:00:00.000Z"
    }
  }
  ```
</ResponseExample>