Cause
The integration reached the maximum number of its own sources.
What to do
Reuse an existing source.
application/problem+json
{
"type": "https://masnet.com/developers/errors/source_limit_exceeded",
"title": "Too many sources",
"status": 422,
"detail": "...",
"code": "source_limit_exceeded",
"correlation_id": "..."
}