Using Microsoft Co-op and MDF for Marketing: What’s actually eligible (and how not to leave money on the table)

Quick take: Every year, millions of dollars in Microsoft partner marketing funds expire unused. Microsoft co-op funds are split into two earning periods with June 30 and December 31 deadlines, meaning unused dollars can disappear twice a year. Here is how to make sure yours isn’t in that pile.

We know a global Microsoft security partner who had $50,000 in Co-op funds available every half year. Two halves in a year, if you are keeping track. We will do the math: that is $100,000 in Microsoft marketing dollars. Skrilla. Cashola. Bread. Cheddar. Guap. A stack. Whatever the kids are calling it these days. One hundred thousand dollars of someone else's cold hard cash, earmarked specifically for marketing, just sitting there, waiting to be used. 

They used almost none of it. 

Not because they did not want to grow. Not because they did not need help with marketing. But because no one knew about the funds. No one had sat down with them and said: here is what you have, here is what qualifies, here is how to use it before the deadline. 

This partner had gone through three marketing managers in two years. Which, honestly, is pretty on par for the industry — the average tenure for a B2B marketing manager hovers around 18 months, and in the Microsoft ecosystem it can feel even shorter. People move fast. Microsoft → Google → Amazon → agency → back to a partner → back to Microsoft. Everyone brings their last company's playbook and spends the first six months just figuring out what co-op even is. By the time they're up to speed, it's Q4 and the deadline is in three weeks. 

Crazy enough, this story is not rare. It happens every year, across hundreds of partners, in amounts that would make any CMO cry. We have been around long enough (and through enough transitions) to have watched it play out firsthand more times than we can count. The partner alliance manager changes. The PMM changes. The program requirements change. We are still here, still know where the bodies are buried, and still know how to file a claim before midnight on the last day of the period.  

Here is what you actually need to know.

Co-op vs. MDF: What's the Difference?

Co-op (Cooperative Marketing Funds)

These are earned based on your partner sales performance. Microsoft calculates them as a percentage of eligible sales revenue and deposits them into your partner account on a rolling basis. They have expiration dates. They require claims to be submitted with documentation after the activity is completed. 

MDF (Market Development Funds)

These are discretionary funds that Microsoft can offer to specific partners for specific marketing activities. Unlike co-op, MDF is not automatically earned, but is offered based on strategic priorities, partner tier, or program participation. If a PMM or PDM has offered you MDF, treat it as perishable. It expires. 

Both are real money that requires real planning to use well. The partners who consistently activate these funds treat them like a marketing budget line item… because that is exactly what they are. 

That said, sometimes it genuinely is a pleasant surprise. We get calls every Q4 from partners who just found out they have MDF available and need to move fast. Some of the most creative campaigns we have run started exactly that way.

What Event Marketing Activities Are Eligible?

This is where partners get tripped up. The eligible activities list is more generous than most people realize, but it comes with documentation requirements that catch people off guard if they plan after the fact. 

For event-related activities, eligible uses generally include: 

• Event sponsorships for Microsoft-sanctioned events including Ignite, Build, MCAPS, and AI Tour 

• Hosting or co-hosting webinars and virtual events tied to Microsoft solution areas 

• Trade show participation and booth costs when tied to an eligible campaign 

• Pre and post-event email campaigns and digital marketing tied to the event 

• Event collateral including presentations, leave-behinds, and sales enablement materials 

• Some branded merchandise and promotional items when tied to an eligible event activity (not standalone swag orders) 

That last point is worth pausing on. Swag on its own is not a clean co-op claim. But swag that is part of a documented event marketing activity, tied to a campaign, with proper invoicing and proof of performance? That is a different conversation. The key is building the campaign architecture first, then fitting the swag into it, instead of the other way around. 

The Practical Checklist: Before You Spend a Dollar

• Check your co-op balance in Partner Center: know what you have and when it expires 

• Review the current eligible activities list for your specific program (it changes; always verify) 

• Map your planned activity to an eligible category before you commit budget 

• Keep every invoice, every screenshot, every metric: document as you go 

• File claims promptly: do not wait until the last week of the period 

• If you are unsure whether something qualifies, ask before you spend, not after 

One More Thing

If reading this made you realize you have funds sitting in your account right now and no plan for them, then that is exactly the conversation we love having. We have helped Microsoft partners activate co-op and MDF for over two decades. We know what is eligible, how to document it, and how to build campaigns that actually move pipeline before the deadline hits. 

Use it before you lose it. We will help you move fast. 

Not sure how much you have or how to use it? Let's find out together. Send Abbie an email and she’ll give you the full breakdown: Abbie@emminc.com