Skip to content

Website Console

Get started Guides API Reference Help Changelog

API Reference

Overview Authentication Errors

Product APIs

© 2026 InnoPaaS

Privacy Terms Contact support Third-party licenses

LinkedIn Facebook X Instagram YouTube

Docs Assistant

Answers grounded in the documentation

Ask anything about the documentation. Answers include citations to the relevant pages.

Try one of these questions:

Enter to send · Shift+Enter for a new line · Esc to close
AI can make mistakes. Verify important details with the linked documentation.

100003 — Sending method not supported

Error code `100003`: Sending method not supported.

100003 is a non-success business code. A 2xx HTTP response can still contain it.

What it means

Sending method not supported

Why it happens

The destination does not support the current sender type or sending method.

What to do

Use a supported sender or method.

Retry guidance

Fix the cause, then resubmit. Do not repeat the same request unchanged.

Related

100xxx — SMS submission validation

Last updated on

Related topics

010009 — Method not allowedError code `010009`: Method not allowed.010010 — Unsupported content typeError code `010010`: Unsupported content type.FAQVoice notification FAQ: onboarding and authentication, send results, template countries, and CDR push.

100002 — Template not available

Previous Page

100004 — Content not allowed

Next Page

On this page

What it means
Why it happens
What to do
Retry guidance
Related