Use Calendly Workflows to automatically send text message reminders to yourself or your invitees. These reminders help reduce no-shows and keep everyone informed before and after meetings.
Note
You can’t send text reminders during the trial period.
Before you begin
- Calendly sends text messages through Twilio, a third-party platform.
- Messages come from random U.S. numbers and aren’t monitored.
- Invitees can choose to receive or stop text messages at any time.
- Some phone carriers, especially outside the U.S., may block these messages. Read Twilio’s support article for more details.
- Each message can include up to 180 characters. A real-time counter helps you stay within the limit.
- If a variable exceeds the character limit, the message will still send without being cut off.
- Calendly shortens invitee answers from booking forms to 40 characters or fewer to reduce message volume.
Set limits and follow guidelines
To maintain quality, Calendly limits how many text messages an organization can send.
- Text messages are only available for Group events with 100 or fewer invitees. Use email Workflows for larger groups.
- Don’t use URL shorteners like bit.ly—some phone carriers block these links. Use full URLs to make sure your messages are delivered. Learn more in this article.
Include reschedule or cancel links (optional)
By default, SMS reminders don’t include reschedule or cancel links. You can add them by inserting custom variables in your message.
Reschedule link:
https://calendly.com/reschedulings/{{invitee_uuid}}
Cancel link:
https://calendly.com/cancellations/{{invitee_uuid}}
Replace {{invitee_uuid}} with your invitee’s unique ID using Calendly’s variable options.
Which countries can I send SMS messages from?
ASIA
Afghanistan (+93)
Armenia (+374)
Azerbaijan (+994)
Bahrain (+973)
Bangladesh (+880)
Bhutan (+975)
Brunei (+673)
Cambodia (+855)
China (+86)
East Timor (+670)
Georgia (+995)
Hong Kong (+852)
India (+91)
Indonesia (+62)
Iraq (+964)
Israel (+972)
Japan (+81)
Jordan (+962)
Korea Dem People's Rep (+850)
Korea Republic of (+82)
Kuwait (+965)
Kyrgyzstan (+996)
Laos PDR (+856)
Lebanon (+961)
Macau (+853)
Malaysia (+60)
Maldives (+960)
Mongolia (+976)
Myanmar (+95)
Nepal (+977)
Oman (+968)
Pakistan (+92)
Palestinian Territory (+970)
Philippines (+63)
Qatar (+974)
Saudi Arabia (+966)
Sri Lanka (+94)
Syria (+963)
Taiwan (+886)
Tajikistan (+992)
Thailand (+66)
Turkey (+90)
Turkish Republic of Northern Cyprus (+90)
Turkmenistan (+993)
United Arab Emirates (+971)
Uzbekistan (+998)
Vietnam (+84)
Yemen (+967)
EUROPE
Albania (+355)
Andorra (+376)
Austria (+43)
Belarus (+375)
Belgium (+32)
Bosnia and Herzegovina (+387)
Bulgaria (+359)
Canary Islands (+3491)
Croatia (+385)
Cyprus (+357)
Czech Republic (+420)
Denmark (+45)
Estonia (+372)
Faroe Islands (+298)
Finland/Aland Islands (+358)
France (+33)
Germany (+49)
Gibraltar (+350)
Greece (+30)
Hungary (+36)
Iceland (+354)
Ireland (+353)
Italy (+39)
Kosovo (+383)
Latvia (+371)
Liechtenstein (+423)
Lithuania (+370)
Luxembourg (+352)
Macedonia (+389)
Malta (+356)
Moldova (+373)
Monaco (+377)
Montenegro (+382)
Netherlands (+31)
Norway (+47)
Poland (+48)
Portugal (+351)
Romania (+40)
San Marino (+378)
Serbia (+381)
Slovakia (+421)
Slovenia (+386)
Spain (+34)
Sweden (+46)
Switzerland (+41)
Ukraine (+380)
United Kingdom (+44)
Vatican City (+379)
AFRICA
Algeria (+213)
Angola (+244)
Benin (+229)
Botswana (+267)
Burkina Faso (+226)
Burundi (+257)
Cameroon (+237)
Canary Islands (+3491)
Cape Verde (+238)
Central Africa (+236)
Chad (+235)
Comoros (+269)
Congo (+242)
Congo, Dem Rep (+243)
Djibouti (+253)
Egypt (+20)
Equatorial Guinea (+240)
Eritrea (+291)
Ethiopia (+251)
Gabon (+241)
Gambia (+220)
Ghana (+233)
Guinea (+224)
Guinea-Bissau (+245)
Ivory Coast (+225)
Kenya (+254)
Lesotho (+266)
Liberia (+231)
Libya (+218)
Madagascar (+261)
Malawi (+265)
Mali (+223)
Mauritania (+222)
Mauritius (+230)
Morocco/Western Sahara (+212)
Mozambique (+258)
Namibia (+264)
Niger (+227)
Nigeria (+234)
Reunion/Mayotte (+262)
Rwanda (+250)
Sao Tome and Principe (+239)
Senegal (+221)
Seychelles (+248)
Sierra Leone (+232)
Somalia (+252)
South Africa (+27)
South Sudan (+211)
Spain (+34)
Sudan (+249)
Swaziland (+268)
Tanzania (+255)
Togo (+228)
Tunisia (+216)
Uganda (+256)
Zambia (+260)
Zimbabwe (+263)
OCEANIA
American Samoa (+1684)
Australia/Cocos/Christmas Island (+61)
Cook Islands (+682)
Fiji (+679)
French Polynesia (+689)
Guam (+1671)
Marshall Islands (+692)
Micronesia (+691)
New Caledonia (+687)
New Zealand (+64)
Northern Mariana Islands (+1670)
Palau (+680)
Papua New Guinea (+675)
Samoa (+685)
Solomon Islands (+677)
Tonga (+676)
Tuvalu (+688)
Vanuatu (+678)
NORTH AMERICA
American Samoa (+1684)
Anguilla (+1264)
Antigua and Barbuda (+1268)
Aruba (+297)
Ascension (+247)
Bahamas (+1242)
Barbados (+1246)
Belize (+501)
Bermuda (+1441)
Canada (+1)
Cayman Islands (+1345)
Costa Rica (+506)
Cuba (+53)
Dominica (+1767)
Dominican Republic (+1809201)
Dominican Republic (+1809)
Dominican Republic (+1849)
Dominican Republic (+1829)
El Salvador (+503)
Greenland (+299)
Grenada (+1473)
Guadeloupe (+590)
Guam (+1671)
Guatemala (+502)
Haiti (+509)
Honduras (+504)
Jamaica (+1876)
Martinique (+596)
Mexico (+52)
Montserrat (+1664)
Netherlands Antilles (+599)
Nicaragua (+505)
Northern Mariana Islands (+1670)
Panama (+507)
Puerto Rico (+1787)
St Kitts and Nevis (+1869)
St Lucia (+1758)
St Pierre and Miquelon (+508)
St Vincent Grenadines (+1784)
Trinidad and Tobago (+1868)
Turks and Caicos Islands (+1649)
United States (+1)
Virgin Islands, British (+1284)
Virgin Islands, U.S. (+1340)
SOUTH AMERICA
Argentina (+54)
Bolivia (+591)
Brazil (+55)
Chile (+56)
Colombia (+57)
Ecuador (+593)
Falkland Islands (+500)
French Guiana (+594)
Guyana (+592)
Paraguay (+595)
Peru (+51)
Suriname (+597)
Uruguay (+598)
Venezuela (+58)
Stay compliant
Calendly follows Twilio’s Acceptable Use Policy. If your messages break these rules, Calendly will turn off your SMS feature.
Don’t send messages about:
- Cannabis
- Gambling
- Firearms
- Other restricted topics
Read Twilio’s Messaging Policy to understand all rules.