Hi @Venkatesh P ,
Welcome to Microsoft Q&A platform and thanks for posting your question here.
I assume you are trying to store the web activity output to a file in ADLS. Please let me know if that is not the case.
- Create a variable and use set variable activity after the Web activity and use this expression :
@{activity('Web1').output.value[0]}in the value of set Variable. - Use copy activity and have a dummy .csv file with one column as the source dataset . Add additional column and provide a new column named
WebActvityOutputwith value =@{variables('var1')}. In the sink , use the same dataset. In the mapping tab , click on Import schema and delete the column from dummy file and only keep the additionally added column. - Execute the pipeline and check if the webActivity output got stored in the .csv in the ADLS .

Hope this will help. Please let us know if any further queries.
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