Protocols, documentation, emulators and useful information from Payment Network Service Providers (NSPs)- Last update: 12/09/2024 Technical specifications for creating and sending the ECR Token from an Online Tax Mechanism (FIM) and receiving the payment result EFT/POS Standalone Operation Statement API Technical Specifications Signatures of Electronic Document Provider Services (YPAHES) Providersν ΥΠΑΗΕΣ Testing policies based on Decision 1155/2023