As previously reported by Pagero, Pakistan is gradually introducing mandatory e-invoicing in the clearance CTC model to modernize transaction controls.   On 18 April 2024, the Federal Board of Revenue (FBR) of Pakistan unveiled the updated version 1.3. of the technical specification for data sharing through API via FBR. This document aims to walk Supply Chain Operators through Digital Invoice Data sharing methods with FBR.   The technical specification document covers the PoS registration process, integration steps with FBR, invoice model details, web API functionality, sample codes, posting model in Postman, and annexures such as sale type codes, SRO/Schedule codes, UOM codes,...