This may be due to unions. In one of my previous jobs we were providing a software for digital subscriptions to their news site. The plan was to also integrate with their SAP for offline subscriptions. We offered to do the integration in a way where a user would buy online and it would get inserted into their SAP via an API. This was a no go, since before they've had a couple of people doing this manually and they couldn't fire them due to unions so they decided we would be sending the orders for offline subscriptions to them and they'll physically enter it into SAP. I wish I was joking.