If you’re a small business on the GSA Multiple Award Schedule (MAS), you already know it’s no cakewalk. Getting on the schedule is hard enough, but keeping your contract? That’s a different story. The process of making changes can feel like an endless paper chase because of compliance updates, price changes, and changing government requirements. But it doesn’t have to make you crazy.
Here’s a detailed guide to getting through GSA MAS changes without losing your mind or your contract.
First, Understand the Types of Modifications
Before you begin, make sure you know what kinds of changes you might need to make:
- Mods for Administrators: Change your phone number, address, or company POC? This is it.
- Pricing Mods: Do you want to add new items, change prices, or give discounts? You’re here.
- Technical Mods: changing the descriptions of products, part numbers, or services.
- Terms and Conditions Mods: changing the terms of the warranty, delivery, or payment.
- Economic Price Adjustments (EPAs) – Adjusting pricing due to inflation or market shifts (but only under certain contract clauses).
- Mass Mods – These are initiated by GSA and usually tied to broad policy changes (you still need to accept them).
Knowing which type you need will save you hours of guesswork and frustration.
Step 1: Read the MAS Modification Guide (Yes, Really)
It’s long. It’s dry. But the MAS Modification Guide is the rulebook. GSA spells out exactly what documentation you need for each type of mod. Skipping this step is like trying to play chess without knowing how the pieces move. You’ll make a wrong move and lose time, or worse, end up with a rejection.
Step 2: Gather Your Docs Before You Log Into eMod
Don’t make the rookie mistake of logging into eMod and thinking you’ll just “figure it out as you go.” You won’t. You’ll hit a wall and waste a perfectly good afternoon.
Instead, pull together:
- Current pricelist (in the correct GSA format)
- Commercial price list (if applicable)
- Supporting justification (e.g., market research, invoices, catalog excerpts)
- Signed CSP-1 (if pricing is involved)
- Any required technical documentation or resumes
You’ll need digital copies, properly labeled, and in PDF format. GSA reviewers are meticulous. Sloppy uploads will only delay your approval.
Step 3: Use the eMod System Like a Pro
eMod is not exactly user-friendly. But it’s the only way to submit a modification. Here’s how to get through it without pulling your hair out:
- Use Internet Explorer or Edge in IE Mode (yes, really).
- Make sure your digital certificate is current.
- Follow the instructions to the letter; even a missing checkbox can trigger a rejection.
- Save often. eMod doesn’t play nice with inactivity.
If you’re submitting a pricing mod, make sure your price proposal template and SCP upload are formatted perfectly. The system doesn’t tolerate errors.
Step 4: Be Strategic With Timing
Not all mods are created equal when it comes to timing.
- Adding products? Submit well before you plan to market or sell them. Review times can take weeks, or months.
- Price increases? These are tricky. GSA doesn’t like them, and they must be justified under EPA clauses. Only request them when absolutely necessary, and back them up with solid data.
- Administrative updates? These are usually fast, but don’t assume anything. Always follow up.
Plan your submissions around contract deadlines, audit schedules, or big contract opportunities.
Step 5: Communicate With Your CO, Early and Often
Your Contracting Officer (CO) is not your enemy. They want to help, but they’re also buried in dozens of other contracts. Be respectful, clear, and proactive.
If you’re not sure about something, send a concise email explaining your situation and asking for clarification. Don’t make them guess. GSA staff appreciate vendors who do their homework and communicate professionally.
Step 6: Track Everything
Keep a log of:
- Submission dates
- Uploads and versions
- GSA emails or requests
- Mod status updates
This will save you when a CO follows up weeks later asking for “that one attachment.” You’ll have it ready.
Bonus: If you ever get audited, you’ll look like a pro.
You Don’t Have to Do It Alone
DJIG helps small businesses deal with the difficulties of GSA MAS contracts. We make sure you get it right the first time, whether you’re getting ready to send mod packages or dealing with rejections or questions.
Need help with a mod? Contact us today and let’s keep your schedule contract working for you, not the other way around.
Final Thought
GSA MAS modifications aren’t fun, but they don’t have to be miserable. With the right process, attention to detail, and support when you need it, you can keep your contract up-to-date and in good standing without losing your mind.



