What are Electronic Reporting (ER) configurations in Dynamics 365 Finance?

Electronic Reporting (ER) is a configurable framework in Dynamics 365 Finance that enables organizations to generate, transform, and exchange business documents and electronic files in formats required by customers, vendors, banks, governments, and regulatory authorities. ER configurations define the data model, mapping, and output format required to generate documents such as electronic invoices, payment files, tax reports, and financial statements. One of the major advantages of ER is that many reporting requirements can be implemented through configuration rather than extensive X++ customization.