Required permissions

In order to work with the recurring invoices, the absolute minimum authorizations are the following

-         Administration > System Initialization > Document Numbering need to be read-only or full access [since number series can be chosen on the recurring invoice]

-         Business Partner > Business Partner Master Data need to be read only or full access [since you choose business partners for the recurring invoice]

With the above authorizations you should be able to add recurring invoices template… Of because it requires more authorizations to run the Recurring Invoice Wizard itself (Same right as you need to add an invoice)