AX 2012: Adding a field to PurchLine and the PO confirmation report

This was my first AX 2012 SSRS customization and I think it was one of the harder ones. Here is everything I had to do to get this to work.
1) Add fields to purchLine table
2) Add fields to purchPurchaseOrderTmp table - this is used by the PurchPurchaseOrder report
3) Add fields to purchLineHistory table - this is used by the PurchLineArchivedVersions View and Query
4) Update PurchLineArchivedVersions view - drag the new field from the PurchLineHistory datasource into the Fields node of the view. Compile the view.
5) Update PurchLineNotArchivedVersions view - drag the new field from the PurchLine datasource into the Fields node of the view. Compile the view.
6) Compile the PurchLineAllVersions view and Synchronize. The field should be available in the PurchLineArchivedVersions and PurchLineNotArchivedVersions datasources on this view. Drag the new field from the PurchLineArchivedVersions view into the Fields node of the PurchLineAllVersions view. Compile this view.
7) Go to the PurchLineAllVersions QUERY now. You have to manually add the new field to the PurchLineArchivedVersions and PurchLineNotArchivedVersions datasources of this query because the dynamic fields property is set to No. Steps 3-7 are all being done because the PurchPurchaseOrderDP (data provider) class uses the PurchLineAllVersions view to copy data to the tmp table, so you need your new field there for step 8.
8) Modify the setPurchPurchaseOrderDetails() method on the PurchPurchaseOrderDP class and add code there to copy your field from PurchLineAllVersions to the PurchPurchaseOrderTmp table. It will look something like:
purchPurchaseOrderTmp.NewField = purchLineAllVersions.NewField;

Now you have to modify the report in visual studio. This was tricky. When I tried to refresh the dataset of the report to see my new fields I got some errors about a parameter on the report. It said Element:PurchPurchaseOrder.Parameters.IsPurchConfirmationRequestJournal has already been defined.

I ended up having to delete the Report parameter (isPurchConfirmationRequestJournal) on the report in Visual studio and refresh the datasets. Refreshing the datasets recreated the report parameter properly.

Hope this helps!