---
title: Enable M2M mapping between supplier contact and suppliers
description: Enable many-to-many \(M2M\) mapping between supplier contacts and suppliers. This enables one supplier contact to be the contact for multiple suppliers, provided the suppliers share a parent-subsidiary relationship.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/source-to-pay-operations/supplier-lifecycle-operations/enable-m2m-supplier-contacts.html
release: australia
product: Supplier Lifecycle Operations
classification: supplier-lifecycle-operations
topic_type: task
last_updated: "2026-03-12"
reading_time_minutes: 3
breadcrumb: [Configure, Supplier Lifecycle Operations, Finance and Supply Chain]
---

# Enable M2M mapping between supplier contact and suppliers

Enable many-to-many \(M2M\) mapping between supplier contacts and suppliers. This enables one supplier contact to be the contact for multiple suppliers, provided the suppliers share a parent-subsidiary relationship.

## Before you begin

Role required: admin

**Important:** M2M mapping between supplier contact and suppliers is available from the Xanadu December 2024 release onwards. The following steps are required to enable M2M mapping.

## Procedure

1.  Create and run a fix script to enable M2M mapping.

    For detailed steps, see [Run the fix script to enable M2M mapping](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/source-to-pay-operations/supplier-lifecycle-operations/run-fix-script.md).

2.  Verify that the version record is created for the script `include M2MSupplierSupportUtil`.

    For detailed steps, see [Verify version record](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/source-to-pay-operations/supplier-lifecycle-operations/verify-version-record.md).

3.  Configure the Supplier Email Domain \[sn\_slm\_email\_domain\] table to remove the `unique` constraint from the `Email Domains` column.

    For detailed steps, see [Remove the unique constraint from Email Domain](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/source-to-pay-operations/supplier-lifecycle-operations/remove-unique-constraint.md).

    **Note:** This step is required only for the upgrade scenarios \(for all earlier versions upgrading to the Xanadu December 2024 release\).


-   **[Run the fix script to enable M2M mapping](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/source-to-pay-operations/supplier-lifecycle-operations/run-fix-script.md)**  
Run the fix script to enable M2M mapping between supplier contact and suppliers.
-   **[Verify version record](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/source-to-pay-operations/supplier-lifecycle-operations/verify-version-record.md)**  
After the fix script is created and run to enable M2M mapping between supplier contact and suppliers, a version record must be created.
-   **[Remove the unique constraint from Email Domain](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/source-to-pay-operations/supplier-lifecycle-operations/remove-unique-constraint.md)**  
Multiple supplier records can have the same email domain after removing the **unique** constraint from the `Email Domain` column of the Supplier Email Domain \[sn\_slm\_email\_domain\] table.

**Parent Topic:**[Configure Supplier Lifecycle Operations](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/source-to-pay-operations/supplier-lifecycle-operations/config-supp-mgmt.md)

**Related topics**  


[Install Supplier Case Management]()

[Install Supplier Collaboration Portal]()

[Install Supplier Operations]()

[Install Supplier Payment Optimization]()

[Supplier Document Management]()

[Configure the document template for the Sign document action type for supplier task]()

[Advanced Work Assignment for Supplier Lifecycle Operations]()

[Configure Supplier Relationship and Performance Management]()

[Install Universal Request for SLO]()

[Configure smart assessments]()

[Run the fix script to enable M2M mapping](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/source-to-pay-operations/supplier-lifecycle-operations/run-fix-script.md)

[Verify version record](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/source-to-pay-operations/supplier-lifecycle-operations/verify-version-record.md)

[Remove the unique constraint from Email Domain](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/source-to-pay-operations/supplier-lifecycle-operations/remove-unique-constraint.md)