The General Services Administration's Office of Inspector General said in an audit report published August 13, 2026, that the Federal Acquisition Service's processes for ensuring accurate product data are ineffective, and that the resulting bad data could be driving federal customer agencies to overpay for items bought through Multiple Award Schedule contracts.
Background
The Federal Acquisition Service runs the Multiple Award Schedule program, the vehicle through which most federal agencies buy commercial products and services from GSA-approved vendors. Two systems sit underneath that program and are supposed to keep prices honest: GSA Advantage!, the online catalog contracting officers browse when comparing offers, and Transactional Data Reporting, which requires schedule holders to report what they actually sold and for how much. Both rely on manufacturer names and part numbers to work. If a contracting officer cannot tell that two listings describe the identical product, they cannot compare prices on it, and FAS's own pricing tools cannot flag the match either.
The GSA OIG opened an agency-wide audit, designated Report No. A240054Q2P26002, to test whether FAS's controls actually keep that identifying data accurate across the schedule. Because Multiple Award Schedule contracts span thousands of vendors and product lines, from office supplies to complex IT equipment, the integrity of the underlying catalog data affects nearly every agency that shops through GSA Advantage! rather than running its own solicitation. The report landed on oversight.gov the same day it was issued, listed as an agency-wide audit with six recommendations directed at the FAS Commissioner.
Key Details
Auditors found manufacturer names and part numbers scattered with errors throughout GSA Advantage! catalog listings and TDR submissions. In multiple cases the same product appeared under separate listings, and part numbers on file did not match the part numbers the actual manufacturer uses. Because FAS has no standardized way of handling part numbers for add-ons and options tied back to a single base manufacturer part number, contracting officers lose the ability to line up prices for what is effectively the same purchase across different Multiple Award Schedule contracts.
The inspector general drew a direct line from that data problem to taxpayer cost. The report states that without reliable manufacturer name and part number data, "FAS's pricing tools cannot identify identical products and provide useful pricing information for contracting officers' use in negotiations, potentially resulting in higher awarded pricing." The consequence, auditors wrote, is that "federal customer agencies may overpay for products offered on Multiple Award Schedule contracts and waste taxpayer dollars."
The report's six recommendations to the FAS Commissioner call for correcting the part-number and manufacturer-name inconsistencies already sitting in the data, locking in accurate part numbers at the point of contract award and again at modification, building stronger automated data-quality checks, giving contracting staff better tools for market research, requiring industrial operations analysts to verify that TDR submissions are accurate, and creating a way to compare identical add-on and base-product variants against each other.
GSA's written response, included in the report's Appendix C, shows the agency did not fully embrace the findings. The Acting FAS Commissioner agreed only with Recommendation 4, the one on equipping contracting staff for market research. On the other five recommendations, covering the data corrections, the award and modification controls, the automated quality checks, the TDR verification requirement, and the product-comparison capability, the Acting Commissioner's response was recorded as partial agreement rather than full concurrence. Oversight.gov's tracking table lists all six recommendations as open, meaning none had been closed as of the report's issuance.
The audit also underscores how the errors it found are not confined to a single product category. Auditors described duplicate listings for the same product and mismatched part numbers as problems that showed up repeatedly across the catalog, rather than as isolated errors tied to one vendor or one commodity type. That breadth is part of why the OIG framed the fix as an agency-wide, systemic one rather than something FAS could resolve by correcting a handful of listings.
What It Means for Contractors
Schedule holders should expect more scrutiny of the exact manufacturer names and part numbers listed on their GSA Advantage! catalog entries and reported through TDR. The audit gives FAS a specific, public mandate to tighten those fields, and contracting officers reading this report now have documented reason to push back harder when a schedule holder's part numbers do not match what the manufacturer itself lists. Vendors whose catalog data is inconsistent, whether from legacy entries, resellers listing the same item under different identifiers, or sloppy handling of add-on and option part numbers tied to a base product, are the most exposed if FAS moves to implement the recommendations it partially accepted.
The finding also changes the negotiating environment. If FAS builds out the price-comparison capability the OIG recommended, contracting officers will have an easier time spotting when one schedule holder's price for a given product runs higher than another's for the identical item under a different listing. Schedule holders whose pricing has depended in part on that comparison gap should not assume it will stay open. Companies pursuing new schedule awards or modifications should treat accurate, standardized part-number data as a compliance item worth getting right the first time, since the audit puts the award and modification stage specifically in scope for tighter part-number verification going forward.
Because the Acting FAS Commissioner only partially agreed with five of the six recommendations, the pace and scope of any resulting changes to catalog or TDR requirements remain unsettled. Contractors should watch for FAS guidance on part-number standardization and TDR verification procedures as the agency works through its response to the audit, since those procedural changes, not the audit report itself, are what will eventually affect how schedule holders list and report their products.
One of the six recommendations calls for locking in accurate part numbers specifically at contract award and at modification, meaning schedule holders could see more detailed data checks built into the modification process itself rather than left to periodic catalog reviews. Companies that treat modification requests as routine paperwork should plan for FAS staff to look more closely at whether submitted part numbers match the manufacturer's own designations before approving a change.
