@Nashy,Please take a look at the following similar threads. If you still have questions about creating parameter, please post more details about your scenario.https://community.powerbi.com/t5/Desktop/Iterating-changing-query-parameter-to-build-a-merged-table/...https://community.powerbi.com/t5/Desktop/Iterating-over-start-and-end-dates-for-multiple-API-calls/t...Regards,Lydia
Power BI Super User, Greg Deckler, explains
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