@phildunlap I first tried the JSON Import/Export method as that is what I am familiar with using to make similar changes, but for this it just wasn't sticking.

@JoelHaggar Thanks for the step by step instructions, it was extremely helpful as I don't have much experience with SQL queries. It worked like a charm, just had to add a device name filter to the update query as I didn't want to move all datapoints.

I have two modbus serial data sources on my mangoes (internal and external usb serial adapter) and I changed the architecture of my modbus serial network a bit and would like to change the data source of a bunch of datapoints from one modbus serial datasource to another.

I have tried exporting the points i would like to move and find/replace the dataSourceXid and although the import tool says the points were saved the data source did not change.

also, it doesn't seem there is a way to change the datasource in the web interface, as there is no data source parameter for data points.

Is there a way to do this without loosing the points history/pointlinks/etc.?