Calculate cost par custom conversion on Facebook
I have created several custom conversions on my website.
My goal is to be able to define the cost per custom conversion using supermetrics and google data studio. But I have an error : "Community connector error: Invalid field combination: spend or action rate can't be fetched when splitting by action dimensions (action_type), only actions or action values can be fetched; IllegalDimensionMetricCombinationException...
This is really annoying since I have the Number of custom conversion using the purchase conversion filtered by the ID of the custom one, and I have the total budget spent. All I need to do is to divide the amount spent by the sum of custom conversions but I didn't manage to find how without getting an error! If someone can help me on this, this would be really awesome.
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