What if my trading partner says they only work with another EDI Provider?

The language is always very confusing around this, making it seem like you MUST use a specific EDI provider for certain trading partners. But for the most part, the trading partners do not actually care which EDI provider you use. The trading partner may have another provider for their backend, similar to how you use Crstl for yours. We just have to run our testing and onboarding through their provider in order to connect to the trading partner; this is something Crstl handles for you. Let us know if there are any trading partners you're interested in setting up!