To make printing the Recurring Invoice Agreement Terms mandatory in Business Central you will need to do the following.
Click on the magnifying glass (1) in the ribbon, then enter “Sales & Receivables Setup” (2) and select it from the list (3).
Figure 1 | Search Sales & Receivables
The Sales & Receivables screen will appear. Scroll down the screen to the General FastTab.
Figure 2 | Sales & Receivables
Now go to 'Recurring Invoice Agreement Terms Mandatory' field and toggle this on. Once this has been enabled, you will need to specify the Recurring Invoice Terms Code, before you can print the Recurring Invoice Agreement Report.