HTTP Interfaces and External Systems for Communications

What the Data for This Category Looks Like

Communications service marketing content targeting financial, insurance, and wealth management customers primarily comes from carrier SMS gateways, enterprise-owned voice outbound call systems, and compliant enterprise messaging sending platforms. Data updates follow a near-real-time rhythm. Content submitted in a single send request enters the delivery queue within seconds after submission. Status receipts are returned within 1 to 5 minutes after sending completes. Data uses structured JSON format. Core fields include:

template_id: Marketing content template ID
mobile_list: List of phone numbers to send to, formatted as 11-digit numeric strings
send_time: Scheduled send time, formatted per ISO 8601
status_code: Send status code
receipt_time: Receipt receiving time

There are no extra redundant statistical fields. All fields serve as core associated information for sending and receipts.

What Constraints Do These Characteristics Impose on HTTP Interfaces and External Systems

Near-real-time update rhythms require interfaces to support low-latency responses, to avoid delayed delivery of marketing content caused by send queue backlogs. Structured JSON format requires external systems to strictly match field formats. Parameter verification failures will be triggered otherwise. The sensitive nature of phone number lists requires interfaces to use HTTPS protocol for transmission, to comply with financial industry data privacy regulations. The strong binding between template_id and carrier-filed templates requires verification of template filing status before calling. Carriers will intercept requests that fail this check. The batch send feature requires interfaces to support batch parameter configuration, to adapt to audience groups of varying sizes for financial customers.

How to Configure Settings

Configuration Item	Recommended Setting	Rationale
`callback_url`	Enterprise-owned HTTPS interface address with path `/receipt`	Used to receive send status receipts returned by carriers, ensuring traceability of marketing content send status
`request_timeout`	`30 seconds`	Communications service interfaces require real-time responsiveness; excessively long timeouts will cause send queue backlogs
`max_batch_size`	`1000 entries per request`	Aligns with the single-batch sending rate limit for carrier SMS and voice interfaces, avoiding rate limiting errors
`verify_mobile_format`	`Enabled`	Automatically verifies that phone numbers are formatted as 11-digit numbers, reducing invalid interface calls
`template_approval_status`	`Only send filed templates`	Complies with communications industry regulatory requirements; unfiled templates cannot pass carrier audits

The parameter values provided on this page are common starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require case-by-case analysis. It is recommended to test on your own samples before finalizing settings.

Three Common Configuration Mistakes

Symptom: Interface returns 429 Too Many Requests status code. Cause: max_batch_size is set beyond the carrier interface's rate limiting threshold. Sending too many phone numbers in a single request triggers rate limiting.
Symptom: Cannot receive send status receipts. Cause: callback_url is not configured with the HTTPS protocol. Carrier interfaces only support HTTPS callback addresses; HTTP requests will be directly blocked.
Symptom: Duplicate send success receipts appear. Cause: The unique_request_id parameter is not configured. Duplicate submitted identical requests are processed repeatedly, generating multiple duplicate receipts.

How to Confirm Configuration Is Complete

Call the test interface to send a test phone number. Check that the request_id field returned by the interface exists and is formatted as a random string. Confirm the request has been normally received.
Log in to the carrier's send management backend. Check that the template_id of the test request matches the filed template. Confirm template verification has passed.
Check the receiving logs of callback_url. Confirm that receipt data containing status_code and receipt_time has been received. Confirm the callback link is working normally.
Simulate a batch send request. Adjust max_batch_size to different values. Check the rate limiting status returned by the interface. Confirm the rate limiting configuration meets expectations.

Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.