Xero Contacts

Xero Contacts Management

Overview

Contacts are the foundational entity in Xero, representing customers (clients you invoice), suppliers (vendors you pay), or both. Every invoice, payment, credit note, and bank transaction is linked to a contact. For MSPs, contacts typically represent managed services clients, hardware vendors, software suppliers, and subcontractors.

Core Concepts

Contact Types

Xero contacts can be customers, suppliers, or both. The type is determined by usage rather than a fixed field:

Role	Description	MSP Example
Customer	Contacts you create sales invoices (ACCREC) for	Managed services clients
Supplier	Contacts you receive bills (ACCPAY) from	Software vendors, ISPs
Customer & Supplier	Both roles	Partner MSPs, distributors

Contact Status

Status	Description
ACTIVE	Active contact (default)
ARCHIVED	Archived contact (hidden from lists)
GDPR_REQUEST	GDPR deletion requested

Contact Groups

Contacts can be organized into groups for reporting and filtering:

Group	MSP Use Case
Managed Services	Clients on monthly contracts
Break-Fix	Ad-hoc support clients
Vendors	Hardware and software suppliers
Partners	Co-managed or referral partners

Field Reference

Core Fields

Field	Type	Required	Description
ContactID	string (UUID)	System	Auto-generated unique identifier
Name	string	Yes	Contact/company name (must be unique)
ContactNumber	string	No	Your reference number for this contact
AccountNumber	string	No	Account number in your system
ContactStatus	string	No	ACTIVE, ARCHIVED, or GDPR_REQUEST
EmailAddress	string	No	Primary email address
FirstName	string	No	First name (for individual contacts)
LastName	string	No	Last name (for individual contacts)
BankAccountDetails	string	No	Bank account information
TaxNumber	string	No	Tax identification number
AccountsReceivableTaxType	string	No	Default tax type for sales
AccountsPayableTaxType	string	No	Default tax type for purchases
DefaultCurrency	string	No	Default currency code (e.g., USD, AUD)
IsSupplier	boolean	Read-only	Has supplier invoices
IsCustomer	boolean	Read-only	Has customer invoices

Address Fields

Contacts support two address types: POBOX (mailing) and STREET (physical):

Field	Type	Description
AddressType	string	POBOX or STREET
AddressLine1	string	Street address line 1
AddressLine2	string	Street address line 2
AddressLine3	string	Street address line 3
AddressLine4	string	Street address line 4
City	string	City
Region	string	State/province/region
PostalCode	string	Postal/zip code
Country	string	Country
AttentionTo	string	Attention to name

Phone Fields

Contacts support four phone types: DEFAULT, DDI, MOBILE, FAX:

Field	Type	Description
PhoneType	string	DEFAULT, DDI, MOBILE, or FAX
PhoneNumber	string	Phone number
PhoneAreaCode	string	Area code
PhoneCountryCode	string	Country code

Financial Summary Fields (Read-Only)

Field	Type	Description
Balances.AccountsReceivable.Outstanding	decimal	Total outstanding AR
Balances.AccountsReceivable.Overdue	decimal	Total overdue AR
Balances.AccountsPayable.Outstanding	decimal	Total outstanding AP
Balances.AccountsPayable.Overdue	decimal	Total overdue AP
UpdatedDateUTC	datetime	Last modification timestamp

API Patterns

List Contacts

curl -s -X GET "https://api.xero.com/api.xro/2.0/Contacts" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" \
  -H "xero-tenant-id: ${XERO_TENANT_ID}" \
  -H "Accept: application/json"

With Filters:

# Search by name (partial match)
curl -s -X GET "https://api.xero.com/api.xro/2.0/Contacts?where=Name.Contains(%22Acme%22)" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" \
  -H "xero-tenant-id: ${XERO_TENANT_ID}" \
  -H "Accept: application/json"

# Active customers only
curl -s -X GET "https://api.xero.com/api.xro/2.0/Contacts?where=ContactStatus==%22ACTIVE%22&&IsCustomer==true" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" \
  -H "xero-tenant-id: ${XERO_TENANT_ID}" \
  -H "Accept: application/json"

# With pagination
curl -s -X GET "https://api.xero.com/api.xro/2.0/Contacts?page=1" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" \
  -H "xero-tenant-id: ${XERO_TENANT_ID}" \
  -H "Accept: application/json"

Get Single Contact

curl -s -X GET "https://api.xero.com/api.xro/2.0/Contacts/${CONTACT_ID}" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" \
  -H "xero-tenant-id: ${XERO_TENANT_ID}" \
  -H "Accept: application/json"

Create Contact

curl -s -X POST "https://api.xero.com/api.xro/2.0/Contacts" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" \
  -H "xero-tenant-id: ${XERO_TENANT_ID}" \
  -H "Content-Type: application/json" \
  -d '{
    "Name": "Acme Corp",
    "ContactNumber": "MSP-001",
    "AccountNumber": "ACME001",
    "EmailAddress": "[email protected]",
    "Addresses": [
      {
        "AddressType": "STREET",
        "AddressLine1": "123 Main Street",
        "City": "Springfield",
        "Region": "IL",
        "PostalCode": "62704",
        "Country": "US"
      },
      {
        "AddressType": "POBOX",
        "AddressLine1": "PO Box 456",
        "City": "Springfield",
        "Region": "IL",
        "PostalCode": "62704",
        "Country": "US"
      }
    ],
    "Phones": [
      {
        "PhoneType": "DEFAULT",
        "PhoneNumber": "555-0123",
        "PhoneAreaCode": "217"
      }
    ],
    "DefaultCurrency": "USD"
  }'

Update Contact

curl -s -X POST "https://api.xero.com/api.xro/2.0/Contacts/${CONTACT_ID}" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" \
  -H "xero-tenant-id: ${XERO_TENANT_ID}" \
  -H "Content-Type: application/json" \
  -d '{
    "ContactID": "'${CONTACT_ID}'",
    "EmailAddress": "[email protected]",
    "Phones": [
      {
        "PhoneType": "DEFAULT",
        "PhoneNumber": "555-9999",
        "PhoneAreaCode": "217"
      }
    ]
  }'

Archive Contact

curl -s -X POST "https://api.xero.com/api.xro/2.0/Contacts/${CONTACT_ID}" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" \
  -H "xero-tenant-id: ${XERO_TENANT_ID}" \
  -H "Content-Type: application/json" \
  -d '{
    "ContactID": "'${CONTACT_ID}'",
    "ContactStatus": "ARCHIVED"
  }'

Search Contacts

# Search by name
curl -s -X GET "https://api.xero.com/api.xro/2.0/Contacts?where=Name.StartsWith(%22Acme%22)" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" \
  -H "xero-tenant-id: ${XERO_TENANT_ID}" \
  -H "Accept: application/json"

# Search by email
curl -s -X GET "https://api.xero.com/api.xro/2.0/Contacts?where=EmailAddress==%[email protected]%22" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" \
  -H "xero-tenant-id: ${XERO_TENANT_ID}" \
  -H "Accept: application/json"

# Search by account number
curl -s -X GET "https://api.xero.com/api.xro/2.0/Contacts?where=AccountNumber==%22ACME001%22" \
  -H "Authorization: Bearer ${ACCESS_TOKEN}" \
  -H "xero-tenant-id: ${XERO_TENANT_ID}" \
  -H "Accept: application/json"

Common Workflows

MSP Client Onboarding

1. Create contact with company details and billing address
2. Set account number using your PSA or internal reference
3. Add to contact group (e.g., "Managed Services")
4. Set default currency if multi-currency
5. Create first invoice for onboarding or first month

async function onboardMspClient(clientData) {
  const token = await auth.getToken();

  const contact = await createContact(token, {
    Name: clientData.companyName,
    ContactNumber: clientData.psaId,
    AccountNumber: clientData.accountCode,
    EmailAddress: clientData.billingEmail,
    Addresses: [
      {
        AddressType: 'STREET',
        AddressLine1: clientData.address,
        City: clientData.city,
        Region: clientData.state,
        PostalCode: clientData.zip,
        Country: clientData.country
      }
    ],
    Phones: [
      {
        PhoneType: 'DEFAULT',
        PhoneNumber: clientData.phone
      }
    ],
    DefaultCurrency: clientData.currency || 'USD'
  });

  return contact;
}

Client Offboarding

1. Verify all invoices are paid - Check outstanding balances
2. Create final invoice if needed for remaining services
3. Archive the contact - Do not delete for audit trail

async function offboardClient(contactId) {
  const token = await auth.getToken();

  // Check outstanding balance
  const contact = await getContact(token, contactId);
  const outstanding = contact.Balances?.AccountsReceivable?.Outstanding || 0;

  if (outstanding > 0) {
    console.log(`WARNING: ${contact.Name} has $${outstanding} outstanding.`);
    return { status: 'blocked', reason: 'outstanding_balance', amount: outstanding };
  }

  // Archive the contact
  await updateContact(token, contactId, { ContactStatus: 'ARCHIVED' });
  return { status: 'archived', contact: contact.Name };
}

PSA Cross-Reference

Use the ContactNumber field to store your PSA system's client ID:

async function findByPsaId(psaId) {
  const token = await auth.getToken();
  const where = encodeURIComponent(`ContactNumber=="${psaId}"`);
  const response = await fetch(
    `https://api.xero.com/api.xro/2.0/Contacts?where=${where}`,
    {
      headers: {
        'Authorization': `Bearer ${token}`,
        'xero-tenant-id': process.env.XERO_TENANT_ID,
        'Accept': 'application/json'
      }
    }
  );
  const data = await response.json();
  return data.Contacts?.[0] || null;
}

Bulk Contact Report

async function generateClientReport() {
  const contacts = await fetchAllContacts();

  return contacts
    .filter(c => c.IsCustomer && c.ContactStatus === 'ACTIVE')
    .map(contact => ({
      name: contact.Name,
      accountNumber: contact.AccountNumber,
      email: contact.EmailAddress,
      outstanding: contact.Balances?.AccountsReceivable?.Outstanding || 0,
      overdue: contact.Balances?.AccountsReceivable?.Overdue || 0,
      city: contact.Addresses?.find(a => a.AddressType === 'STREET')?.City
    }))
    .sort((a, b) => b.overdue - a.overdue);
}

Error Handling

Common API Errors

Code	Message	Resolution
400	Name must be unique	Use a different contact name
400	Name is required	Provide Name field
401	Unauthorized	Refresh access token
403	Forbidden	Check tenant ID and OAuth scopes
404	Contact not found	Verify ContactID
429	Rate limit exceeded	Wait and retry

Validation Errors

Error	Cause	Fix
Name must be unique	Duplicate contact name	Use unique name or find existing
Name is required	Missing Name field	Add Name to request body
Invalid email	Malformed email address	Fix email format
Invalid phone	Malformed phone number	Fix phone format

Error Recovery Pattern

async function safeCreateContact(data) {
  try {
    return await createContact(data);
  } catch (error) {
    if (error.message?.includes('must be unique')) {
      // Contact exists - find and return it
      const existing = await searchContactByName(data.Name);
      return existing;
    }

    if (error.status === 401) {
      // Token expired - refresh and retry
      await auth.refreshToken();
      return await createContact(data);
    }

    throw error;
  }
}

Endpoint Reference

Endpoint	Method	Description
/Contacts	GET	List contacts (paginated, filterable)
/Contacts	POST	Create or update contacts
/Contacts/{ContactID}	GET	Get single contact
/Contacts/{ContactID}	POST	Update a contact
/Contacts/{ContactID}/Attachments	GET	List contact attachments
/ContactGroups	GET	List contact groups
/ContactGroups	POST	Create contact group
/ContactGroups/{GroupID}/Contacts	PUT	Add contacts to group
/ContactGroups/{GroupID}/Contacts/{ContactID}	DELETE	Remove contact from group

Best Practices

1. Use unique names - Xero requires unique contact names; include location if needed
2. Set AccountNumber - Map to your PSA client ID for cross-referencing
3. Use ContactNumber - Store PSA or internal reference numbers
4. Include billing email - Required for emailing invoices directly from Xero
5. Add both addresses - STREET for physical, POBOX for mailing/billing
6. Use contact groups - Organize clients by service tier or type
7. Archive, don't delete - Preserve historical data and audit trail
8. Set default currency - Important for international MSP clients
9. Check balances before archiving - Ensure no outstanding amounts
10. Paginate contact lists - Use page parameter for more than 100 contacts

Related Skills

• Xero Invoices - Creating invoices for contacts
• Xero Payments - Payment tracking by contact
• Xero Reports - Aged receivables by contact
• Xero API Patterns - API reference