A colleague was struggling with getting a Time Series model to work. The issue turned out to be that there were leading and trailing spaces on the target variable name. I have seen this happen with client data in the past. The error message that Modeler generates is non-obvious and is not mentioned in the resolution for that error. [2018-08-23 12:26:42] AEQAE1004E: Unable to complete the request. Reason: Reduce Execution error - The field name Expenses is not valid. I can't think of any good reason for a variable name to have spaces, so it seems like trimming them automatically would be a good solution.
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