I am writing my first official email in English which happens to be my second language. I am unsure about the correctness of the following sentence. Please help.
The detected error is false positive, and I have verified this against the source. I believe you have updated your system to check against improper pricing, but the same was never conveyed to us.
explain--> The situation is that we send our stock related information to another site for selling. the format of data that we send was agreed between us. Now suddenly they had changed the system without telling us hence the error came.