Resolved: BizTalk 2006 SAP Adapter schema generation error.

Got an email today from one of our BizTalk customers in Melbourne. He seemed to be having an error while trying to retrieve an IDOC  from SAP using the BizTalk 2006 SAP Adapter. The error he was getting was:

Anyway, after doing a bit of digging around, and some quick testing from the customer, it was found that the account that they were using to connect to SAP and retrieve the schema definitions did not have sufficient permissions! Though I would post this for the rest of the BizTalk world and thanks so much to my customer for allowing me to share (you know who you are;-)