Hey @Anonymous ,
Based on my knowledge it is not possible to have trigger in file Share.
Neither Azure function nor ADF nor Logic App supports triggers on Azure file share.
similar threads:
https://stackoverflow.com/questions/64710485/azure-trigger-function-for-file-share
The only way would be to periodically search for the file based on scheduled trigger .
@Nasreen Akter @HimanshuSinha-msft @KranthiPakala-MSFT : Any other ideas or thoughts or as to when ADF would enable File share trigger