How do I catch an inner exception in X++?

Question

Answer 1

SSunny Vasty75 reputation · answered Aug 13, 2026

For a CLR/.NET exception, walk the inner exception chain.

catch (Exception::CLRError)
{
    System.Exception ex = CLRInterop::getLastException();

    while (ex)
    {
        warning(ex.get_Message());
        ex = ex.get_InnerException();
    }
}

The top-level message is often generic. The actual reason can be one or two exceptions deeper.

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