April 1 is a week away. Microsoft is enforcing MFA on all Partner Center app and user APIs, starting that date. Any API call without a valid MFA claim gets rejected — 401 response, error code 900421, done. If your PSA, billing tool, or custom integration talks to Microsoft’s APIs without MFA compliance, it stops working April 1.

That’s the thing most people are going to miss while they’re focused on everything else in the March Partner Center update. Don’t miss it.

Once you’ve handled that, here are the three other moves worth making this week.

The Sentinel Promotion Has More Runway, But It Closes

Microsoft extended the Sentinel 50-GB commitment tier promotional pricing through June 30, 2026. Customers who buy during the current window can lock pricing through March 31, 2027. Depending on region, that’s up to 32% off pay-as-you-go rates.

For SMB and mid-market customers, predictable pricing often matters more than the absolute number. A commitment tier that holds pricing for a year converts a “we’ll think about it” SIEM conversation into a signed agreement, because you’ve removed the variability risk.

The playbook: go through your client list, find the ones currently on pay-as-you-go Sentinel or still running legacy SIEM, and build the math for them. The offer is there. The question is whether you surface it before your customers find out about it from someone else.

ASPX Is Worth Learning Before It Fully Rolls Out

Microsoft’s new Partner Center experience, ASPX (AI Business Solutions & Security Partner eXperience), is designed to surface customer usage, licensing, renewal timing, and incentive eligibility in one view. Microsoft says it mirrors the same data models their internal sales team uses.

That’s the point. If you’re using ASPX and Microsoft’s direct reps are using the same signals, you’re having conversations with the same context instead of playing catch-up.

The specific motions ASPX supports: Copilot adoption, M365 E3 and E5 to E5 expansions, secure productivity workflows, and renewal identification. If your Microsoft practice runs on gut instinct and quarterly check-ins, this is the tool that replaces that with actual usage data.

Spend 30 minutes in it before month-end. Even at partial rollout, it’s showing things most partners don’t catch until a customer is already in renewal.

E7 Incentives Are Live. Are You Pitching It Yet?

Microsoft 365 E7 goes generally available May 1, and starting April 1, the Agent 365 component is eligible under Copilot + Power Accelerate incentives — including immersion briefings, proof-of-concept engagements, and deployment accelerators. E7 and Agent 365 are also CSP incentive-eligible, which means you can build margin into the deal, not just sell through.

We covered the E7 pricing math here — the bundle saves about $18/user/month versus buying components separately. The incentive stack makes it even more interesting for partners willing to run the briefings and POCs.

If you have customers on E3 or E5 who have been asking about AI but haven’t moved, the E7 timing is your window. You’ve got six weeks before GA. Use them to run the briefings so your customers are already sold by the time the SKU lands.

Frontier Partner Badges Are Real Differentiation Now

Separately, Microsoft posted updated qualification details for the Frontier Partner badge, which goes to partners who have demonstrated advanced capabilities across multiple Microsoft Cloud and AI disciplines, including Copilot, AI Apps on Azure, and Data Security.

The badge requires multiple Solutions Partner designations and specializations. It’s not a rubber stamp. If you have the credentials, it’s worth the application because it’s the credential that tells enterprise buyers you’re not just reselling licenses.

Also worth noting: the Support Services designation is now live, with third-party audit validation and performance metrics. If you’ve been building a support practice, this is the way to publicly differentiate it.

The Monday Morning Checklist

Four things, ordered by urgency:

  1. Today or tomorrow: Audit your API integrations for MFA compliance. Test against the MFA-enabled APIs now before enforcement starts April 1. Don’t let a billing tool outage be your introduction to this change.

  2. This week: Pull your client list. Flag customers on pay-as-you-go Sentinel or legacy SIEM. Build the Sentinel promo math and schedule conversations before June 30.

  3. This week: Log into ASPX and look at your top 10 accounts. What renewal signals are already visible? What upsell opportunities is the data surfacing?

  4. Before April 30: For E3 and E5 customers asking about AI, schedule an Agent 365 briefing. Get the POC done before E7 GA. Being first in the conversation is worth more than any discount.

One more thing: if you’ve got the credentials for Frontier Partner, apply. The badge exists. Enterprise buyers are starting to use it as a filter.