Cendra automatically creates unique smart lock access codes for each guest reservation and revokes them at checkout. No manual code management — Cendra handles the entire lifecycle based on your reservation data from your PMS.Documentation Index
Fetch the complete documentation index at: https://docs.cendra.ai/llms.txt
Use this file to discover all available pages before exploring further.
Quick link: Open Access Codes in Cendra — https://app.cendra.ai/home-automation/access-codes
How Guest Access Codes Work
- New reservation syncs from PMS — Cendra detects a confirmed booking with check-in/out dates
- Code created — Cendra generates a unique access code on the property’s smart lock via Seam
- Code activated — the code becomes active at the check-in time
- Guest arrives — they use the code to unlock the door (you can share the code via WhatsApp or email using AI agents)
- Code revoked — at checkout time, Cendra automatically removes the code from the lock
Code Lifecycle
| Stage | When | What happens |
|---|---|---|
| Created | Reservation confirmed | Unique code generated and scheduled on the lock |
| Active | Check-in time | Code works on the lock |
| In use | During stay | Guest can lock/unlock with their code |
| Revoked | Check-out time | Code is automatically removed from the lock |
Sharing Codes with Guests
Cendra’s AI agents can share access codes with guests automatically through your communication channels:- WhatsApp — AI sends the code as part of pre-arrival instructions
- Email — included in check-in information emails
- Timed delivery — codes can be shared 24 hours before check-in, or at any time you configure
Security
- Unique codes per reservation — every guest gets a different code
- Time-bound — codes only work during the reservation period
- Automatic cleanup — no forgotten active codes from past guests
- Audit trail — Cendra logs when codes are created, used, and revoked
- Real-time status — see which codes are currently active on each lock
Supported Locks
Guest access codes work with any Seam-compatible smart lock that supports temporary codes, including:- Yale smart locks and deadbolts
- August smart locks
- Schlage smart locks
- Level Lock
- Igloohome locks and lockboxes
- Kwikset smart locks
- Nuki smart locks
- And 15+ additional brands
Combining with AI Agents
The most powerful setup combines guest access codes with Cendra’s AI agents:- Guest asks “how do I get in?” → AI retrieves the access code and property entry instructions from the knowledge base
- Pre-arrival message → AI automatically sends check-in instructions with the access code 24 hours before arrival
- Guest reports lock issue → AI troubleshoots (battery check, code verification) and escalates to your team if needed