Here's what you require knowing about using Confusionsoft, er, I mean Infusionsoft.

Infusionsoft barely works.

If you think you must use Infusionsoft, you should avoid making Infusionsoft API calls as part of your funnel (sales, conversions, money flow, etc).

Infusionsoft APIs should only be called after all funnel steps are complete + they should only be called in an async manner, in other words, you should never wait for or expect any Infusionsoft API call to ever work.

This means you just store all your data locally + have a background process that repeatedly jams your data into Infusionsoft until a successful status code is returned.

Then delete the queued data you're trying to jam into Infusionsoft from your processing queue.

All except one of my many hosting clients has abandoned Infusionsoft because it fails so consistently.