Hello, The tax institution/authority in my country wants all companies to report all invoices to them. They have contracted with some middlewares, and ERP system should report to one of those middlewares. The middleware we are dealing with has an interface and want the data in a certain format, to the point that if we exported an excel file and they wanted a column to be in a date format, we can't export it as a string (in the same format, but recognized as a string not a date in excel) And numbers can't be like 3,000 for example, no commas. And you have to add 5 digits after the decimal point, so an amount like 5052.50, it should be 5052.50000 When I told them that this is too much, and the middleware should be more flexible than that, they said our job is to deliver the data to the tax authority. So I wanted to make sure before I shoot one of them. What should the middleware do in that case? I used Segment for example before, and other ETL tools, and you can use them even if you are not a technical person. The middleware figures out how to do that "middling".