SMS compliance in Serbia
The rules that apply to business SMS sent to numbers in Serbia, with the source for each.
Quiet hours
No statutory quiet hours identified; send promotional SMS 08:00-20:00 local time (industry best practice). Transactional/OTP 24/7.
Source: Industry practice – no official text found
Consent
Prior opt-in consent required for promotional SMS under Law on Personal Data Protection 2018 (87/2018); transactional/OTP allowed within an existing service relationship.
Source: Law on Personal Data Protection 2018 (87/2018)
Opt-out
Promotional SMS must offer a free, simple opt-out (e.g., reply STOP); honour requests promptly and suppress opted-out numbers.
Source: Operator/aggregator policy (best practice)
Prohibited content
Blocked: phishing/fraud, illegal or unlicensed gambling, adult content, hate/political content (most operators), counterfeit/illegal goods, unlicensed financial offers; URL shorteners often blocked.
Source: Operator content policies / national advertising law
Data protection law
Law on Personal Data Protection 2018 (87/2018). Supervisory authority: Commissioner for Information of Public Importance and PDP.
Source: Law on Personal Data Protection 2018 (87/2018)
Sender ID rule
Registration required; monthly fees; unregistered overwritten.
Source: Operator/regulator registration rules
Other
Classify traffic as promotional or transactional; OTP/transactional must not contain marketing content; use local language or Unicode where required.
Source: Industry practice
This summary is guidance, not legal advice. Last verified 23 October 2026.