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Hi,
I'm trying to create a web query by that uses a paramter list that is generated from anohter web query but I'm getting the folliwng error:
Formula.Firewall: Query 'products - metafields' (step 'Expanded Value1') references other queries or steps, so it may not directly access a data source. Please rebuild this data combination.
I have done the following.
I web query called Products with one field called product_id
A list called product_id generated from the Proucts query
a parameter list called productid that is based on the product_id list.
I'm adding the productid to the new webquery as shown is the image below.
Am I doing something wrong or is it not possiable to do this?
You need to 'isolate' teh query that's accessing an external data source as a separate function to which you pass the parameterhttp://www.excelguru.ca/blog/2015/03/11/power-query-errors-please-rebuild-this-data-combination/
In addition to @Anonymous 's suggestion: In PBI you can also use parameters for this task: https://gqbi.wordpress.com/2016/11/23/power-bi-using-parameters-for-flat-file-csv-excel-sources/
Imke Feldmann (The BIccountant)
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