Content rules
Sender identity
Sender identity
Every broadcast must come from a verified alphanumeric Sender ID (3 to 11 characters) or the default
UGATEXT. Impersonating banks, government agencies, or telecom operators (for example MTN, AIRTEL, BOU, URA) without authorization is rejected with 403 COMPLIANCE_BLOCKED.Prohibited content
Prohibited content
These are blocked automatically (decision
BLOCK):- Phishing links
- Fake Mobile Money PIN prompts
- Unlicensed loan scams
- Betting or gambling broadcasts to unverified lists
- Fraudulent impersonation
Promotional quiet hours
Promotional quiet hours
Promotional and marketing broadcasts may only be sent between 07:00 and 21:00 EAT (
Africa/Kampala). Transactional messages such as OTPs, payment receipts, and security alerts can be sent 24/7.URL and link shortener inspection
URL and link shortener inspection
Shortened URLs that hide malicious redirects or credential-harvesting domains are flagged for review (decision
REVIEW) or blocked.Opt-outs
Include an opt-out line
Marketing and promotional campaigns must end with clear unsubscribe instructions, for exampleReply STOP to unsubscribe.
Suppression list
A number is added to your opt-out suppression list immediately when:- The recipient replies
STOP,UNSUBSCRIBE, orOPTOUT. - You add it from the dashboard or through the API (
/api/opt-outs).
422 NUMBER_SUPPRESSED_ON_OPT_OUT_LIST.
In bulk broadcasts, suppressed numbers are filtered out before billing, so you are not charged for them.
Pre-flight compliance check
Validate message copy before you send withPOST /compliance/inspect.
Related errors
See Errors and limits for all error codes.

