SUMMARY I have a source for security prices that produces a poorly formatted file. I am easily able to fix the issue via a shell script and can import the current price just fine. Trying to load historical price data however fails with the message "Local quote sources aren't supported.". Looking at the source code it seems this behavior may be expected but I am unsure why this capability is omitted. https://invent.kde.org/office/kmymoney/-/blob/master/kmymoney/misc/webpricequote.cpp#L198 Also, the documentation does not mention this limitation.