My apps was a call center using Twilio. I did initially have a db for prototyping, then for demos, then we started growing and needed security and multi tenancy

My apps was a call center using Twilio. I did initially have a db for prototyping, then for demos, then we started growing and needed security and multi tenancy support. The pace and new customers started growing so fast that it just made sense to spin off new db instances (Postgres). We later started having issues updating schema, adding features, upgrading, troubleshooting. We needed to redesign the schema, backend and frontend but it was worth it at the end and saved us a lot of time.