Driving Sales Success: How Omni-Channel AI SDRs Achieved 12x Pipeline ROI for a Leading Office Supply Provider
- 22 hours ago
- 3 min read
Retail sales teams face constant pressure to generate more leads and build a stronger pipeline while managing limited time and resources. For a large North American office supply and technology provider, the challenge was clear: how to efficiently scale prospecting efforts across multiple product categories without overwhelming its human sales reps. The solution came through a six-month campaign that combined AI-driven sales development representatives (SDRs) with automated LinkedIn outreach, delivering remarkable results.
This case study reveals how deploying omni-channel AI SDRs transformed top-of-funnel prospecting, saved thousands of man-hours, and generated a 12x return on investment (ROI) in pipeline value.
How AI SDRs Transformed Prospecting for a Large Retail Provider
The campaign focused on two core categories: IT supplies and services, and breakroom, cleaning, and safety supplies. SellBigger deployed four AI SDR agents to handle high-volume outbound calling, while an automated LinkedIn AI Assistant managed social engagement. This combination created a seamless omni-channel approach that reached prospects through both voice and social touchpoints.
High-Volume Voice Dialing with AI
The SellBigger Agentic AI Assistant reached out to an impressive 133,912 contacts over six months. This outreach included LinkedIn Connections, LinkedIn InMails, LinkedIn Posts, LinkedIn messaging Emails, Ringless Voicemails, inbound and outbound dialing, reaching a total of 15,565 contacts. Our AI was able to navigate phone trees, leave voicemails, and log call outcomes in Microsoft Dynamics CRM. This automation freed human reps from repetitive dialing and data entry, allowing them to focus on meaningful first calls that included new customers, white space, upsell selling, and long-term contract conversations.
Expanding Reach with LinkedIn AI Engagement
While the AI SDRs worked the phones, the LinkedIn AI Assistant scaled social outreach by:
Sending 10,566 connection requests
Delivering 5,691 direct messages and InMails
Viewing and following 17,157 profiles
Generating 3,703 new contacts from accepted invites
This social touchpoint expansion helped build a broader network and nurtured leads that might have been missed through phone calls alone.
Measurable Impact on Pipeline and Efficiency
The combined efforts of voice and LinkedIn AI outreach resulted in 306 total meetings and leads. Of these, 213 came from voice calls and inbound callbacks, while 93 were direct leads generated through LinkedIn interactions. This pipeline translated into approximately $900,000 in new opportunities for the sales team.
The campaign investment delivered a 12x pipeline-to-spend ratio. This means every dollar spent on the AI SDR campaign generated twelve dollars in pipeline value.
Saving Thousands of Man-Hours
One of the most significant benefits was the massive time savings. By automating high-volume outreach, the provider reclaimed over 4,600 man-hours that would otherwise be spent on dialing, messaging, and data entry.
Voice automation saved about 3,348 hours
LinkedIn automation saved about 1,258 hours
To put this in perspective, a team of 22 human sales reps working 8 hours per week would be needed to match the manual effort saved by the AI SDRs over six months.
Why Omni-Channel AI SDRs Work
This case study highlights several reasons why combining AI SDRs with LinkedIn automation drives strong results:
Scale without burnout: AI SDRs handle repetitive, high-volume tasks that overwhelm human reps.
Multiple touchpoints: Voice calls and social outreach together increase the chances of connecting with prospects.
Data accuracy: Automated logging reduces errors and keeps CRM data up to date.
Cost efficiency: Lower campaign costs compared to hiring and training additional SDRs.
Faster pipeline growth: More meetings and leads generated in less time.
Practical Takeaways for Sales Teams
Sales leaders looking to improve prospecting should consider these lessons from the campaign:
Use Agentic AI to automate routine outreach tasks and free up reps for high-value conversations.
Combine telco with social channels to reach prospects where they are most active.
Track detailed metrics to measure ROI and adjust campaigns quickly.
Invest in tools that integrate with your CRM to maintain clean, actionable data.
Plan campaigns around specific product categories or territories for focused results.
The success of the SellBigger omnichannel AI SDR campaign demonstrates how technology can multiply sales efforts without increasing costs or headcount. By automating top-of-funnel prospecting across voice and LinkedIn, the office supply provider built a strong pipeline, saved thousands of hours, and achieved a 12x return on investment.
Sales teams ready to boost pipeline growth should explore how AI SDRs can fit into their outreach strategy and unlock new levels of efficiency and impact.

