SD to CRM connectivity settings

I am looking for the transaction equivalent for PIDE (manage customer master settings for SD to CRM) which is used to setup the sales orders side between SD and CRM.

We are in the process of performing a technical upgrade and we are unable to modify a sales order in R/3 which then sends an update to CRM. We are blocking on error message V4 310. We are also experiencing an issue with VBAK-VBKLA is not populating with the correct system origin. it is populating with CRM04A where it should be CRZ04A.

This was working prior to the upgrade but the client documentation cannot be located.

Any help would be greatly appreciated.

Thanks,

Kevin

SAP SD consultant