Common UEI validation errors include data mismatches, address format problems, and incorrect Entity Administrator designations. Users experiencing SAM.gov rejections should compare legal names across documentation, guarantee information consistency, and clear browser cache before resubmitting. Contact SAM support at 1-877-352-2255 after two failed attempts. Implementing standardized data entry protocols, conducting quarterly audits, and establishing proper record management procedures helps prevent future validation issues. The following sections provide thorough troubleshooting strategies for persistent registration challenges.
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ToggleCommon UEI Validation Errors and Their Root Causes

Numerous organizations encounter validation errors when registering for a Unique Entity Identifier (UEI) in the System for Award Management (SAM). These errors often stem from entity discrepancies between registration information and official records.
Data mismatches represent the most frequent issue, where minor spelling variations or inconsistent name formats prevent successful validation. For example, using “Corp.” instead of “Corporation” can trigger rejection.
Address validation problems are equally troublesome, as SAM.gov requires USPS-formatted physical addresses. P.O. Boxes are not accepted, and suite or building numbers must exactly match official records. A recent update requires that Entity Administrators must be employees, officers, or board members of the organization, adding another layer of validation complexity.
Rural addresses present particular challenges due to incomplete database coverage. Submitting multiple incident tickets can cause further delays and complications in resolving validation issues. If you discover a UEI assignment error, prompt action is essential to prevent disruptions in federal funding eligibility. Technical overloads during peak registration periods and legacy system integration issues further compound these problems, often causing unexpected delays in UEI validation.
Step-by-Step Troubleshooting Guide for SAM.gov Rejections

Resolving SAM.gov rejections requires a methodical approach to identify and correct the specific issues preventing successful UEI validation. When encountering registration problems, users should first examine entity verification errors by comparing the exact legal name across all documentation.
Registration accuracy depends on consistent information throughout the submission.
Maintaining precise, uniform data across all registration fields is essential for successful SAM.gov validation.
- Check for name discrepancies between IRS records and SAM.gov application details
- Clear browser cache and delete draft registrations before submitting new applications
- Document all error messages with screenshots for FSD Help Desk support tickets
- Validate physical address using current utility bills or lease agreements
- Allow 72 hours between corrective submissions to accommodate system processing
For persistent issues, consider contacting SAM support directly at 1-877-352-2255 for specialized assistance and resolution guidance.
The transition from DUNS number to UEI has created new verification challenges that require careful attention to detail during the registration process.
If rejections persist after two attempts, escalate to SAM.gov’s entity validation specialists with complete documentation of previous troubleshooting efforts.
Preventative Strategies to Maintain Clean UEI Records

While troubleshooting existing UEI errors helps resolve immediate registration issues, proactive maintenance strategies greatly reduce the likelihood of future validation problems. Organizations should implement standardized data entry protocols for address formats, legal entity names, and tax identification numbers to guarantee consistency across all records.
Establishing quarterly audit schedules allows teams to systematically identify and correct duplicate records, inactive entities, and outdated ownership information before they trigger SAM.gov rejections. These audits should cross-reference UEI entries with DUNS/LEI databases to verify proper alignment with federal entity hierarchies.
Automated validation checks through API integrations provide real-time error detection, while role-based access controls limit modification privileges to authorized personnel only. Since the federal transition process from DUNS numbers to UEI has increased transparency requirements, maintaining accurate records is more critical than ever.
Organizations should also develop extensive documentation systems that maintain certified UEI records according to retention requirements. It’s critical to follow proper procedures for secure record disposal to ensure that outdated UEI information doesn’t create compliance vulnerabilities or identity confusion.
Frequently Asked Questions
How Long Do UEI Validations Typically Take During High-Volume Periods?
During high-volume periods, UEI validation timeframes typically extend beyond the standard 10 business days, sometimes reaching 15-20 business days.
Peak periods, such as fiscal year-end or major grant deadlines, create processing backlogs that affect all applicants. Organizations should plan accordingly by initiating registration at least 20 business days before any critical deadlines.
The validation process remains consistent regardless of volume, but the queue management system prioritizes applications based on submission date.
Can Contractors Update NAICS Codes Without Affecting UEI Validation Status?
Contractors can update NAICS codes in their SAM.gov registration without affecting UEI validation status. These are separate processes within the system.
NAICS code updates occur in the Entity Registration section under Core Data, while UEI validation relates to entity identity verification. Changing industry classifications does not trigger a re-validation of the UEI.
Contractors should regularly review their NAICS codes for accuracy, as proper classification guarantees eligibility for relevant government contract opportunities.
Are UEI Numbers Transferable During Mergers or Acquisitions?
UEI numbers are not directly transferable during mergers or acquisitions.
When business structures change through these processes, entities must update their SAM.gov registrations to reflect new legal status.
Merger implications include the requirement to register again if the legal business entity changes.
While the UEI itself cannot be transferred, the acquiring company must guarantee SAM registration accuracy following any organizational change, addressing potential UEI transferability issues through proper documentation.
How Do International Entities Handle Address Validation Requirements?
International entities manage address validation through specialized software that handles address formatting requirements across different countries.
These organizations must adhere to international compliance standards by implementing country-specific validation rules, which recognize variations in postal codes, street designations, and regional conventions.
Many businesses utilize API integration with postal authorities to verify addresses in real-time, ensuring deliverability while maintaining data quality.
This systematic approach reduces shipping errors and improves customer satisfaction by confirming address accuracy before order processing.
What Alternatives Exist When Login.Gov Identity Verification Repeatedly Fails?
When login.gov identity verification repeatedly fails, users can pursue several alternatives.
Individuals may contact partner agency help centers directly for agency-specific solutions. Filing support tickets through official Login.gov channels often provides troubleshooting guidance.
Some agencies offer in-person verification options at government offices. Users might explore agency-specific verification portals like ID.me where applicable.
As a last resort, deleting and recreating accounts can reset the verification process, though this requires starting from scratch.