Hi cskeenelectrical,
This error is prompted if a line is either missing a GST code or missing data altogether. Ensure that all lines in your split transaction have a GST code selected prior to saving. If you have used the 'Add lines' button to create more lines, delete any empty/unused lines by using the little trash icon to the right of the line, then save (see example below).
![](https://lithium-response-prod.s3.us-west-2.amazonaws.com/intuit.response.lithium.com/RESPONSEIMAGE/b66b0928-a4bc-4189-820b-cf78e94d8135.default.PNG)
-Kass