Warehousing and distribution continues to be a fast growing sector driven by the rise in e-commerce, next-day delivery expectations, and increasingly complex supply chains. Logistics operators are under constant pressure to run their facilities efficiently, securely, and at scale. Large multi-site operators are investing heavily in automation, robotics, and workforce technology to stay competitive. Yet despite this wave of innovation sweeping through warehouse operations, one area that has remained largely unchanged is physical access.
The majority of warehouses and distribution centres still rely on proximity keycards and fobs to manage who can enter which areas of a facility. For a sector defined by high staff turnover, rotating shift patterns, large contractor workforces, and strict regulatory requirements around restricted access zones, the limitations of relying solely on card-based credentials are significant. The good news is that warehouses no longer have to make an all-or-nothing choice between their existing choice of physical access credentials and a modern mobile access solution. Now as a result of mobile credential SDK providers like Sentry Interactive both physical credentials and mobile credentials can operate side by side on the same systems, serving different parts of the workforce in the way that best suits each group.
Why operators have hesitated to move to mobile credentials and why that’s changing
Cost and disruption have historically been the primary barriers to warehouses adopting mobile access credentials. Unlike a corporate office where a small number of readers control a handful of entry points, a large distribution centre can have dozens of access points; dock doors, goods-in areas, racking zones, server rooms, office pods, staff welfare facilities, charging bays, and perimeter gates. Replacing every one of those readers with mobile-compatible hardware has traditionally meant significant capital expenditure and operational disruption, particularly in environments where access points cannot be taken offline.
What has changed the picture entirely is the emergence of open standard mobile credential software integration solutions that don’t require a choice between old and new. Mobile credentials built on open standards can be introduced into an existing access control environment and run alongside legacy keycards and fobs within the same system, without requiring any hardware modification or forcing a hard transition.
Mobile credentials that coexist with keycards and other legacy access methods
The key distinction that makes open standard mobile credentials a practical and low-risk option for warehouse operators is that they do not replace existing credentials. Keycards, fobs, and other legacy credential types can continue to work exactly as they always have. Mobile credentials that use NFC technology are simply added as an additional credential type on the same access control system.
Open standard mobile credential software from companies like Sentry Interactive integrates with existing major physical access control on-premise systems and enables a mixed-credential environment where different parts of the workforce use whichever credential type is most appropriate for their role and situation. Permanent warehouse operatives who are already issued keycards can continue using them. Supervisors, team leaders, or administrative staff who would benefit from smartphone-based access can be issued mobile credentials instead, or in addition. Contractors and agency workers can receive time-limited mobile credentials for their scheduled visits without requiring a physical card to be issued, and recovered.
This coexistence model means there is no hard transition, no operational disruption, and no requirement to retire existing infrastructure. Operators can introduce mobile credentials incrementally, for specific user groups, specific sites, or specific areas, and expand at a pace that suits their operations and budget.
Why open standard credentials are the right choice for multi-system warehouse environments
The interoperability advantage of open standard mobile credentials is particularly significant in multi-site logistics operations where different facilities run different access control systems. Providers like Sentry Interactive use asymmetric encryption and a non-proprietary protocol for their mobile credentials designed for cross-system compatibility. A mobile credential issued to a warehouse operative on their smartphone works across multiple access control platforms, across multiple sites, within a single management application, alongside whatever physical credentials are already in use at each location.
The operational and security benefits of a mixed-credential environment
Introducing non-proprietary mobile credentials alongside existing keycards and fobs delivers a range of tangible operational and security improvements, without changing anything that already works:
- Reduced credential sharing – Mobile credentials issued to a specific employee’s smartphone are personal and non-transferable, reducing potential security vulnerabilities from shared physical cards in high-turnover shift environments. Physical cards remain in use where they make sense; mobile credentials offer improved convenience without requiring their removal.
- Time-limited mobile access for contractors and visitors – A time-limited mobile credential issued to a contractor’s smartphone for their scheduled visit expires automatically on completion, removing the risk of credentials remaining live beyond their intended use and eliminating the need for a site manager to be on-site to collect a card at the end of the job.
- No hardware replacement required – Mobile credentials from providers like Sentry Interactive don’t rely on reader hardware, they are readerless mobile credentials. Mobile credentials can be introduced across sites running different physical access control systems, without any changes to reader hardware.
Detailed space usage Insights – Mobile access credential unlock data is logged alongside existing card-based access records in the same system. This provides detailed insights of site activity to support compliance reporting and the investigation of stock discrepancies or security incidents.
A practical, low-disruption path to a more secure and convenient access
In a sector where margins are tight and operational efficiency takes priority, the ability to enhance physical access without replacing infrastructure, removing existing trusted credentials, or disrupting established workflows is an advantage. Open standard mobile credential software gives warehouse and distribution centre operators the freedom to add a more secure, more manageable credential type to their existing environment, at their own pace, on their own terms, running alongside the keycards and legacy credentials that are already working for them.
For multi-site portfolio operators in particular, the ability to introduce consistent, interoperable mobile credentials across every facility, regardless of which physical access control system each site runs, and without touching the physical credential infrastructure already in place, represents a practical modernization path for warehouse and distribution centers.
If you would like to introduce open standard mobile credentials alongside your existing keycard and legacy credential infrastructure, please get in touch to integrate our readerless mobile credential SDK with your access control system.
