Limits
| API | Rule |
|---|---|
| STK push | accountReference 1–12 characters, description 1–13 |
| B2C | amount 10 to 250 000; remarks 2–100 characters |
| Reversal | remarks 2–100 characters |
| Phone numbers | Kenyan Safaricom numbers (07…, 01…); sent as 2547…/2541… |
| Shortcodes | 5 to 7 digits; partyA and receiverParty accept 5 to 9 |
| URLs in production | https only |