• Sage 2018 - upgraded to 2019 and then downgraded back to 2018, now API won't work

    We have written a program for one of our clients using the Sage Peachtree API. Every time they upgrade versions, we always have to get the latest DLLs and rebuild our app to make it work again. However recently they say that they installed Sage 2019,…
  • How to overwrite the sales tax using sdk

    We want to be able to write the Sales tax of a document back to sage using a third party application. From the .net dll, we have understood that the sales tax can only be calculated but not written to. But we want to know if there is any way we can edit…
  • CriptographicException and System.InvalidOperationException

    I can hit all the sample databases and my private database locally; however, when deployed I get this exception: System.Security.Cryptography.CryptographicException","StackTrace": " at Sage.Peachtree.API.PeachtreeSession.VerifyOrRequestAccess(CompanyIdentifier…
  • Sage 50 2016 SDK - The type or namespace name 'Sage' could not be found (are you missing a using directive or an assembly reference?)

    Hi, I tried to connect to Sage 50 2016 but It is impossible, when I compile my code, I get this error: Error 4 The type or namespace name 'Sage' could not be found (are you missing a using directive or an assembly reference?) It is a little weird…