Help center support eXpress
We've collected answers to popular questions to make eXpress easy and convenient to use. Didn't find the answer to your question? Contact our support team.
- Welcome to eXpress
- eXpress Support
- Introducing eXpress & Glossary
- Installation & Updates & Requirements
- Registering & Logging In
- Registration & Authentication in the App
- Phone and Credentials
- Corporate Email
- Corporate Server Address
- QR Code
- Registration & Authentication Security
- Sessions and Logging in on Another Device
- Additional Data Protection — Personal Password and PIN Code
- Registration & Logging In Troubleshooting
- User Profile
- Chats, Channels & Threads
- Contacts
- Tags & Tabs
- Files
- Calls & Conferences
- Push Notifications & Counters
- Fixing Background Work on Mobile
- Bots & SmartApps
- Diagnostics & Logs & Cache
- Admin Panel
- Jira Support Portal
- Technical Support for Admins
- Database Modifications Policy
- eXpress Documentation
- Privacy Policy
Phone and Credentials
The registration and authentication scheme using a phone number in eXpress:
Can I Stay on Public Server Without Logging Into Corporate Server?
When registering with a phone number in eXpress, you can skip connecting to the corporate server and remain on the public server.
I'm in the US/Canada. How Do I Register With a Phone Number? 
Contact eXpress support for help with registering.
Is There an SMS Receiving Limit?
When registering and logging into eXpress using a phone number, the number of SMS retrieval attempts is limited. This block can be lifted through support. There may also be a daily limit from the SMS provider (10 attempts for Russian mobile operators) that cannot be lifted. After a recent SIM card change, you may also need to wait 1–2 days.
- You can request a code no more than once per minute.
- The sent code remains valid until you request a new one: as soon as a new code arrives, the previous one stops working.
- The daily limit resets at 00:00 Moscow time, not 24 hours after the first attempt.
Not Getting SMS Code? What to Do?
If the code does not arrive or an error occurs, do not request it again but contact your organization's support or the eXpress immediately.
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❓Related Topics:
- SMS code is incorrect or not arriving
- Unhandled_service_error | “An error occurred” after entering the SMS code
- Error: “Number already in use. Unlink it from another account”
What Does the “Leave the Server” Button Do?
When logging in again, you can leave the server using the Leave the server button (sends a request for logout). If the administrator confirms the logout, the same device will be required to log in again.
Authentication on an eXpress Lite Server
The registration and authentication scheme on eXpress Lite server is as follows:
