You’re in the editor. You type ( or [ or { or ' and SAP is dumb and doesn’t close it right away like a proper IDE would.

Well,

Click on the lower right corner icon which gives you access to the SAPGui options where you configure code templates.

In the formatting option, activate Enable Auto Brackets and voilá, SAP will now automatically close any doors you open.

I don’t see why this isn’t set by default.

Thank you, Sérgio Fraga for the tip.

Greetings from Abapinho.