Hi Steven Wu ,
Welcome to Microsoft Q&A platform and thanks for posting your question here.
As I understand your query, you are trying to make a post request to the Azure Queue storage via Web activity in ADF , however , it is throwing authentication Error. Please let me know if that is not the correct understanding.
Probably , here you are missing on
Authorizationheader. An authorized request requires two headers: theDateorx-ms-dateheader and theAuthorizationheader.
You need to generate SAS key and pass the same in authentication header value in the below format:
Authorization: SharedKey myaccount:ctzMq410TV3wS7upTBcunJTDLEJwMAZuFPfr0mrrA08=
and x-ms-date with this syntax: Fri, 26 Jun 2015 23:39:12
For more details, kindly refer the below resources:
Azure blob GET request authorization header "x-ms-date" field issue
Hope it helps. Kindly accept the answer by clicking on Accept answer button. Thankyou