Update a contact

Update an existing contact’s information. All fields are optional, allowing partial updates.

Update Behavior

• No fields are required - you can update just one field or multiple fields
• Only fields provided in the request will be updated; all other fields remain unchanged
• company_id is optional - if not provided, the existing company association will be preserved
• If company_id is provided, it must be a valid, non-empty integer that exists in the system
• Changing the company_id will move the contact to the new company

Examples

# Update only email
POST /contacts/123
{
  "email": "newemail@example.com"
}

# Update multiple fields
POST /contacts/123
{
  "first_name": "Updated",
  "last_name": "Name",
  "phone_1": "555-1234"
}

# Change company association
POST /contacts/123
{
  "company_id": 456
}

# Update without changing company (company_id omitted)
POST /contacts/123
{
  "email": "updated@example.com",
  "is_primary": true
}