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.

Updated 14 Oct 2026

Phone and Credentials

RTS
CTS

The registration and authentication scheme using a phone number in eXpress:


Phone number authentication scheme

Can I Stay on Public Server Without Logging Into Corporate Server?

RTS
Lite
CTS

Yes, if you register in eXpress using your phone number. On the login screen, choose Phone and credentials and enter your number. When the app asks for a corporate email, tap Skip and confirm the action. You will stay on the public server.

ETS
The branded
ETS
app may also offer registration by phone number, but the connection to the corporate
eCTS
server cannot be skipped.

How Do I Register With a Phone Number While in the US or Canada?

Contact eXpress support: they will help you with registration.

Is There an SMS Receiving Limit?

RTS
Lite
CTS

Yes. If you sign up or sign in to eXpress with your phone number, the number of attempts to receive an SMS is limited. This block can be lifted through support. The SMS provider may have its own daily limit: 10 attempts for Russian mobile operators. It cannot be removed. After a recent SIM card change, you may 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, regardless of the time of the first attempt.
ETS
In the branded
ETS
app a different SMS limit may exist.

Why Does the SMS Code Not Arrive at a Foreign Number?

SMS codes are not sent to foreign numbers. You can log in without SMS:

If none of these options works for you, contact eXpress support.

Not Getting SMS Code? What to Do?

If the code does not arrive or an error occurs, do not request it again: contact your organization's support or eXpress support immediately.


What Does the “Leave the Server” Button Do?

Lite
CTS
eCTS

When you sign in again, the Leave the server button sends a logout request from the corporate server. If your organization's server administrator confirms the logout, the same device will be required to log in again.

Authentication on an eXpress Lite Server

Lite
eXpress Lite is a lightweight version of the corporate server
CTS
. For more information about eXpress Lite capabilities, see here.

The registration and authentication scheme on eXpress Lite server is as follows:

CTS Lite authentication diagram