TM1 Forum

You can right-click the dimension in server explorer, select Edit Element Attributes, and then Edit->Create New Attribute or you can use DimensionAttrInsert in a TI process.

UNION should work

Consolidation called 'Prior Month' would work too.

I agree with qml that there might be a better solution that doesn't involve spinning through the datasource twice, but if you're set on it, you could always run the process twice and use a parameter and if statement to segregate operations between first and second run. You can call the second run fr...

To expand on what Drg said, you can use a WHILE loop to apply one value to multiple target elements, periods in this case. If I'm understanding your question right, you're trying to take a value from one month in the current year, say October, and write that value to all the months in the next year,...

I'm curious to see what other people have to say, but I've been leery about doing anything more complicated than a rolling average when it comes to trending in TM1. For forecasted sales volume, we do interface with Logility Demand Planning, using TM1 to gather some of the inputs and manual forecast ...