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Supplier registration and government-agency related requirements for a Microsoft Entra ID tenant are typically handled through governance and compliance controls rather than a special “support global administrator” role.

For government or regulated environments (such as Azure Government), supplier relationships and oversight can be implemented and tracked using the ISO 27001:2013 Regulatory Compliance built‑in initiative in Azure Policy. Within that initiative, there are several manual (documentation/oversight) controls related to suppliers and government oversight that a Global Administrator or other governance owner can use as part of supplier registration and management:

1. In Azure Government, use the ISO 27001:2013 Regulatory Compliance initiative
   • Navigate to Azure Policy and assign the ISO 27001:2013 (Azure Government) Regulatory Compliance built‑in initiative to the appropriate scope (subscription/management group).
   • Within this initiative, under Supplier Relationships, review and use the following policies as part of supplier registration and oversight:
     • Define requirements for supplying goods and services (CMA_0126)
     • Determine supplier contract obligations (CMA_0140)
     • Document acquisition contract acceptance criteria (CMA_0187)
     • Document personnel acceptance of privacy requirements (CMA_0193)
     • Define and document government oversight (CMA_C1587)
     • Establish policies for supply chain risk management (CMA_0275)
   • These policies are “Manual, Disabled” by default; they serve as tracked compliance items where the organization documents how supplier registration, contract obligations, and government oversight are fulfilled.
2. Use these policies to structure supplier registration for a government agency
   • When onboarding a supplier (for example, a managed service provider or other external party) to work with a government agency tenant:
     • Use CMA_0126 to define and document the requirements suppliers must meet (security, compliance, data handling, etc.).
     • Use CMA_0140 to document specific contract obligations related to information security and privacy.
     • Use CMA_0187 to define acceptance criteria for acquisition contracts before granting access to the tenant or data.
     • Use CMA_0193 to ensure personnel acceptance of privacy requirements is documented.
     • Use CMA_C1587 to document how government oversight of the supplier is performed.
     • Use CMA_0275 to define supply chain risk management policies that apply to suppliers accessing the tenant.
   • These artifacts can be referenced by the Global Administrator and security/compliance teams when granting access in Microsoft Entra ID (for example, when approving enterprise applications, B2B guests, or managed service access), ensuring supplier registration aligns with government‑agency requirements.
3. External validation of supplier management controls
   • For Azure and Dynamics 365, supplier management and related controls are covered in external certifications such as ISO 27001 and ISO 27017, specifically section A.15.1: Information security in supplier relationships.
   • A government agency can reference these certifications and their Statements of Applicability and certificates as part of due diligence when registering Microsoft or other cloud suppliers.

In summary, a Global Administrator supporting a government agency should:

• Use the ISO 27001:2013 (Azure Government) Regulatory Compliance initiative in Azure Policy to document and track supplier registration, contract obligations, and oversight.
• Align internal supplier registration procedures with the manual controls listed under Supplier Relationships.
• Reference Azure’s ISO 27001/27017 certifications for assurance on Microsoft’s own supplier‑management controls.

References:

• Details of the ISO 27001:2013 (Azure Government) Regulatory Compliance built-in initiative
• Supplier management overview