To update a contact, use the updateContacts mutation.

mutation {
  updateContacts(
    dataSetId: "4fe4136f-c007-44a3-b38f-92220xxxxxxxx"
    updateContactInputs: [
      {
        key: "PISCX-098724242477"
        to: {
          attributes: [
            { name: "Country", value: "Germany" }
            { name: "Cell Phone", value: "+4960100000001" }
          ]
        }
      }
    ]
  ) {
    modifiedCount
  }
}

{
  "data": {
    "updateContacts": {
      "modifiedCount": 1
    }
  }
}

Arguments

Arguments supported by the updateContacts mutation:

Argument	Nested field	Values	Required?	Definition
`dataSetId`		ID	Required	The ID of your audience
`updateContactInputs`	`key`	String	Required	The unique identifier assigned to the contact
	`to`	Array	Required	See nested values

Fields nested inside the to field:

Field	Nested field	Required?	Values	Definition
`attributes`	`value`	Required	Depends on the type of contact attribute.	The new value of the contact attribute
	`name`	Required	String	The name of the contact attribute you want to update
`consent`			Array	To update consent preferences, see Update consent statuses for contacts.

Fields

Fields returned by the updateContacts mutation:

Field	Values	Required?	Definition
`modifiedCount`	Integer	Required	The number of contacts that have been updated

Possible error messages

Error	Definition
`CONTACT_NOT_FOUND_BY_KEY`	A contact with the specified identifier is not available in the audience. Use the Get all contacts query to get the list of existing contacts.