Epicor is an ERP program, and from my limited time working with a different one, I think it's a bit unfair for them to expect you to handle this whole thing on

Epicor is an ERP program, and from my limited time working with a different one, I think it's a bit unfair for them to expect you to handle this whole thing on your own, and on such short notice. I've only seen ERP software be big and clunky. So, don't calm down, but feel a bit justified in being worried all of a sudden. Be very clear that you need to have login sorted out before you can begin work on the project. Write down all of your concerns in a text document, and save them to be raised the internal kickoff meeting (There should be one. If not, ask for one). Meanwhile, search their documentation as best you can, and see if you can get an idea of what the actual work would entail. Research can count as productivity, and you may find more questions that need to be raised.