E12003 — SMSNoEligibleSender

HTTP status: <span class="text-code bg-card rounded-sm border px-1 font-mono group-[&amp;]/code-block:rounded-none group-[&amp;]/code-block:border-none group-[&amp;]/code-block:bg-transparent group-[&amp;]/code-block:p-0">422
Type: <span class="text-code bg-card rounded-sm border px-1 font-mono group-[&amp;]/code-block:rounded-none group-[&amp;]/code-block:border-none group-[&amp;]/code-block:bg-transparent group-[&amp;]/code-block:p-0">validation_error
Name: <span class="text-code bg-card rounded-sm border px-1 font-mono group-[&amp;]/code-block:rounded-none group-[&amp;]/code-block:border-none group-[&amp;]/code-block:bg-transparent group-[&amp;]/code-block:p-0">SMSNoEligibleSender

No eligible sender is available for this message. Supply a 'from' or configure a sender for this destination.

What to do

Supply a 'from' sender, or configure a sender for the destination country, then send again.