Voice of the Customer for Source-to-Pay Suites

20 July 2026 - ID G00856095 - 3 min read
By Peer Community Contributor
As S2P becomes increasingly AI-enabled, value realization depends on robust data foundations, explainability standards and governance models. This note guides procurement technology leaders to learn from ratings and reviews shared by their peers on Gartner Peer Insights.

Voice of the Customer

Gartner Peer Insights Voice of the Customer evaluates vendors in a given technology market by applying a specific methodology to aggregated end-user reviews. Vendors are then positioned into four quadrants based on two criteria: User Interest and Adoption (x-axis), and Overall Experience (y-axis) (see Figure 1). See the Methodology section for details.
Along with the historical peer-based perspective represented in this document, Gartner has a related expert-led Magic Quadrant for Source-to-Pay Suites.
Figure 1. Voice of the Customer for Source-to-Pay Suites
Source: Gartner (July 2026)
All vendors are classified under specific quadrants based on their “overall experience,” and “user interest and adoption.” The Customers’ Choice quadrant in the upper right represents the highest overall experience, and maximum user interest and adoption. Strong Performer is in the upper left. Aspiring is in the lower left. Established is in the lower right. Eligible vendors as of [April 2026] — Customers’ Choice vendors: Coupa; Strong Performer vendors: Shanghai ZHENYUN Information Technology; Aspiring vendors: Esker, Ivalua; and Established vendors: GEP, SAP, Zycus.

Peers’ Willingness to Recommend

Gartner Peer Insights reviewers rate their willingness to recommend each vendor. Figure 2 compares vendors according to the reviewers’ willingness to recommend them.
Figure 2. Voice of the Customer for Source-to-Pay Suites, Willingness to Recommend
Source: Gartner (July 2026)
Eligible vendors compared based on their “overall reviews” and reviewers’ “willingness to recommend.”

Vendors’ End-User Rating Summaries

Figures 3 through 9 summarize key information for each vendor included in the “Voice of the Customer”:
  • Overall Rating and rating distribution
  • Other ratings covering specific aspects of the experience with the vendor
Figure 3. Voice of the Customer for Source-to-Pay Suites, Coupa Vendor Summary
Source: Gartner (July 2026)
This graphic provides a snapshot of the vendor’s rating details, including average rating, number of reviews, reviewer willingness to recommend, a rating histogram, and a breakdown of reviewers’ company sizes, industries and geographic regions.
Read all Peer Insights user reviews for Coupa.
Figure 4. Voice of the Customer for Source-to-Pay Suites, Esker Vendor Summary
Source: Gartner (July 2026)
This graphic provides a snapshot of the vendor’s rating details, including average rating, number of reviews, reviewer willingness to recommend, a rating histogram, and a breakdown of reviewers’ company sizes, industries and geographic regions.
Read all Peer Insights user reviews for Esker.
Figure 5. Voice of the Customer for Source-to-Pay Suites, GEP Vendor Summary
Source: Gartner (July 2026)
This graphic provides a snapshot of the vendor’s rating details, including average rating, number of reviews, reviewer willingness to recommend, a rating histogram, and a breakdown of reviewers’ company sizes, industries and geographic regions.
Read all Peer Insights user reviews for GEP.
Figure 6. Voice of the Customer for Source-to-Pay Suites, Ivalua Vendor Summary
Source: Gartner (July 2026)
This graphic provides a snapshot of the vendor’s rating details, including average rating, number of reviews, reviewer willingness to recommend, a rating histogram, and a breakdown of reviewers’ company sizes, industries and geographic regions.
Read all Peer Insights user reviews for Ivalua.
Figure 7. Voice of the Customer for Source-to-Pay Suites, SAP Vendor Summary
Source: Gartner (July 2026)
This graphic provides a snapshot of the vendor’s rating details, including average rating, number of reviews, reviewer willingness to recommend, a rating histogram, and a breakdown of reviewers’ company sizes, industries and geographic regions.
Read all Peer Insights user reviews for SAP.
Figure 8. Voice of the Customer for Source-to-Pay Suites, Shanghai ZHENYUN Information Technology Vendor Summary
Source: Gartner (July 2026)
This graphic provides a snapshot of the vendor’s rating details, including average rating, number of reviews, reviewer willingness to recommend, a rating histogram, and a breakdown of reviewers’ company sizes, industries and geographic regions.
Read all Peer Insights user reviews for Shanghai ZHENYUN Information Technology.
Figure 9. Voice of the Customer for Source-to-Pay Suites, Zycus Vendor Summary
Source: Gartner (July 2026)
This graphic provides a snapshot of the vendor’s rating details, including average rating, number of reviews, reviewer willingness to recommend, a rating histogram, and a breakdown of reviewers’ company sizes, industries and geographic regions.
Read all Peer Insights user reviews for Zycus.

Market Definition

Gartner defines the source-to-pay (S2P) suite market as an integrated set of solutions to source, contract, request, procure, receive and pay for goods and services across an enterprise. These solutions typically are sold as cloud-based software as a service.
Source-to-pay suites allow organizations to manage all of their sourcing and procurement activities within a single integrated solution. These solutions are modular in nature, allowing customers to activate/implement the functionality that is relevant for their needs, and are ERP/financial-system-agnostic. The integrated nature of these solutions allows for data to easily flow across the S2P process, providing needed visibility to upstream and downstream information. For example, users can view a purchase order alongside its related contract, the sourcing event that led to the contract, and connect downstream documents like receipts, invoices and payments.

Methodology

A full description of the methodology can be found on the Gartner Peer Insights Voice of the Customer Methodology page.
Voice of the Customer includes vendors with products aligned to the market that have 20 or more eligible published reviews (and 15 or more ratings for “Capabilities” and “Support/Delivery”) during the 18-month consideration period ending 30 April 2026. Reviews from vendor partners or companies with less than $50 million in revenue are excluded.
In the source-to-pay suites market, Gartner Peer Insights published 460 reviews and ratings during the consideration period.
The data used in this report is drawn from reviews on Peer Insights, a free peer review and ratings platform that regularly publishes new reviews. The Voice of the Customer methodology uses a snapshot of reviews data from a defined time frame and does not automatically update as new reviews are published. The external Peer Insights site will always have the most updated peer view of the vendors and products in this report.
The numerical ratings scores in each vendor summary graphic (shown as “Rating by Category”) are best interpreted as sample statistics with a reasonable margin for error and not as exact values.