Copy job unable to run, no progress started.
The service account has been added permission on the share.
Below are sample logs that will be found in Secure Copy LogViewer: Access Denied.

Share permission is not granted to the correct share structure.
Verify and Correct share permission and NTFS permission (if it is windows Share) to be added to the root share or the shared folder that is added in the job. Make sure the service account is added or granted and allowed full control(below with some samples). After the permission has been granted(make sure it is granted recursive if permission is granted from Parent Level), perform the copy job again.
If it is not there kindly add-in and reconnect the share and verify with below:
1) Verify the shared folder can be accessed with the service account
2) Perform a folder and file creation
3) Verify the creation of folder and file having the service account being granted full control.
4) Remove the folder and file created with the service account.
5) Perform the copy job.
Sample share permission for below scenario
a-> //shareserver
b-> //shareserver/L1sharefolder1
c-> //shareserver/L1sharefolder1/L2folder
***L2folder is existing folder that yet to be granted recursive permission
Scenario 1:
Service account granted 'Full control" on //shareserver
Result of Access by secure copy /service account
a-> succeed full control
b-> fail access denied
c-> fail access denied
Scenario 2:
Service account granted 'Full control" on //shareserver/L1sharefolder1
Result of Access by secure copy /service account
a-> fail access denied
b-> succeed full control
c-> fail access denied ( as this is created and not granted recursive from parent)
Scenario 3:
Service account granted 'Full control" on //shareserver/L1sharefolder1 and //shareserver/L1sharefolder1/L2folder
Result of Access by secure copy /service account
a-> fail access denied
b-> succeed full control
c-> succeed full control
Scenario 4:
Service account granted 'Full control" on //shareserver/ and //shareserver/L1sharefolder1 and //shareserver/L1sharefolder1/L2folder
Result of Access by secure copy /service account
a-> succeed full control
b-> succeed full control
c-> succeed full control