What are the character limits for SMS messages in Sweden?

In Sweden, SMS messages have a character limit of 160 characters when using GSM-7 encoding and 70 characters when using UCS-2 encoding. Exceeding these limits will result in the message being split into multiple parts.

Is it possible to send SMS messages to landlines in Sweden?

No, sending SMS messages to landline numbers is not supported in Sweden. Attempting to do so will result in a delivery failure and a 400 error response from the API.

What is the best time to send SMS marketing messages in Sweden?

The recommended sending hours for SMS marketing in Sweden are between 08:00 and 20:00 CET. It's best to avoid sending messages on Sundays and public holidays, and to schedule campaigns between 10:00 and 18:00 on weekdays.

Are there any restrictions on the content I can send via SMS in Sweden?

Yes, certain types of content are prohibited in SMS messages in Sweden, including gambling and lottery content (unless licensed), adult content, illegal products/services, and cryptocurrency promotions without proper disclaimers. Regulated industries like financial services and healthcare also have specific compliance requirements.

How do I handle SMS opt-outs in Sweden to comply with regulations?

To comply with regulations in Sweden, you must process opt-outs in real-time, send a confirmation of the opt-out to the user, and maintain opt-out lists across all campaigns. Regularly audit your opt-out database to ensure accuracy.

Which SMS API providers offer good support for sending SMS to Sweden?

Twilio, Sinch, and MessageBird are all reputable SMS API providers that offer robust support for sending SMS messages to Swedish phone numbers, with features tailored to the region's requirements.

What keywords are required for SMS opt-out in Sweden?

The required keywords for SMS opt-out in Sweden are STOP, STOPP, and AVSLUTA (Swedish). You should also support the optional keyword HJÄLP (Help in Swedish).

What type of consent is required before sending marketing SMS messages in Sweden?

Explicit consent is required before sending marketing SMS messages in Sweden. This consent must be written or digital, freely given, specific, and informed. You must clearly state the purpose of the messaging during opt-in and maintain records of consent.

What is the best practice for handling phone number formatting when sending SMS to Sweden?

When sending SMS to Sweden, it is best practice to ensure the recipient's phone number is in E.164 format, which includes the country code (+46) followed by the phone number.

Are Alphanumeric Sender IDs supported in Sweden?

Yes, Alphanumeric Sender IDs are fully supported in Sweden. They do not require pre-registration and can be used dynamically. The length limitation is a maximum of 11 alphanumeric characters.

Sweden SMS Guide

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