Google Contacts, the address book built into Gmail, lets you keep track of all your contacts, see when you last interacted with them, and more.
Import recurring operations sheets and flag invalid records.
Get valid Excel rows into PostgreSQL and a chat report showing how many went in and what needs fixing.
Share checked operations rows in a dated monthly file.
Get a dated CSV and row count in your shared folder every month, or an error note explaining why the export stopped.