Associate Extended Data

We have taken associate creation out of the FWBS wizard and used our own method to create a new associate and then load this into a an Edit mode wizard. This enabled us to act on the associate in the “creation” wizard in ways we couldn't when the associate was not created until you finished the creation wizard.
This works well but it doesn't always create the row in one of two extended data tables. We thought that Associate.Update automatically created any extended data that wasn't there but it doesn't in this case. So we tried forcing it by calling SetExtendedData and then Associate.update. But this still doesn't work.
Our creation wizards has fields bound to the XD and this doesn't present any problems if the XD row is not created. However, we now have a requirement to act on the XD from within the wizard and this fails because the row doesn't exist. We get the error message “The specified external data code “UDE0500004” is not currently supported.

We found the answer to this: you cannot save an Associate without an associate type. We've added in a default one and its works fine!