u/Either-Sentence2556

I want to learn upi issuer and aquierer flow all business logic, how api flows works? Npci api's? How uidir or reconciliation part happens? Like actually how eft switch works btw npci and core banking system.

Most resources only explain high-level UPI flow. People working in PSPs/banks — where did you learn this? Any docs, blogs, PDFs, videos, or resources?

Is there any online resources, offical documents to learn this.

I want to learn upi issuer and aquierer flow all business logic, how api flows works? Npci api's? How uidir or reconciliation part happens? Like actually how eft switch works btw npci and core banking system.

Most resources only explain high-level UPI flow. People working in PSPs/banks — where did you learn this? Any docs, blogs, PDFs, videos, or resources?

Is there any online resources, offical documents to learn this.