Amplifi uses a credit-based system to gate outbound messaging. Depending on your plan, you either draw from a credit balance, send under an unlimited subscription, or use a combination of both. Your billing status is enforced directly in the product—when you try to send a campaign, reply in a conversation, or launch a poll, Amplifi checks your account before the message leaves.Documentation Index
Fetch the complete documentation index at: https://docs.messagesender.ai/llms.txt
Use this file to discover all available pages before exploring further.
How credits work
Each outbound message consumes credits from your organization’s balance. The number of credits deducted depends on the message type and length.SMS
1 credit per message segment. A segment is up to 480 characters. Messages longer than 480 characters use multiple segments—for example, a 700-character message costs 2 credits.
MMS
2 credits per message, regardless of length. Any message that includes an image attachment is counted as MMS.
Subscription plans
Amplifi offers three plan types. Your organization is on one of these at any given time.Per-message plan
Per-message plan
You pay for a credit balance and draw from it as you send. There is no recurring subscription—your access to outbound messaging depends entirely on having credits available. This plan is best for organizations with variable send volume.
Unlimited plan
Unlimited plan
An active subscription gives your organization unlimited outbound SMS and MMS without per-message credit deductions. Access is tied to your subscription being active and paid through the current period. There is no credit balance to manage.
Full-service plan
Full-service plan
A recurring subscription plus a credit balance. Your subscription includes a set number of credits each billing cycle, and you can purchase additional credits on top. This plan is common for organizations that send at high volume but also need flexibility for burst sends.
Checking your credit balance
Your current credit balance and subscription status are visible in Settings.Credits purchased as part of a one-time credit pack typically carry a six-month expiry. Included subscription credits reset each billing cycle. If you are unsure when your credits expire, contact your account team.
What happens when credits run out
If your organization runs out of credits—or if your subscription lapses—outbound messaging is blocked. When this happens:- Campaign sends are blocked before they start
- Replies in the Conversations inbox are blocked
- You see an insufficient credits or inactive billing message in the product