Hello @Astrid Malanka ,
Thanks for the ask and welcome to Microsoft Q&A .
I am assuming that the ask here is how to use hashing in Analytics . The copy activity may be not the correct activity , if you use data flow , then you can use the CRC32/SHAI/SHA2
Please read about this more . [https://learn.microsoft.com/en-us/azure/data-factory/data-flow-expression-functions#expression-functions-list