CallAPI function 'ZUHELP_Open()' error on file 'uc.msl'

Document ID : KB000116670
Last Modified Date : 02/10/2018
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Issue:
When attempting to run Call API against a job in Automic, the following error is observed:

Function 'ZUHELP_Open()' error on file 'uc.msl', No such file or directory
Cause:
This issue has been found to be permissions related. 
Resolution:
For the user who was executing the CallAPI, group permissions to execute were missing. Due to customer-specific security auditing, the setuid bit was reverted (not set). Once this was changed, the Call API was able to be executed successfully. 

More information for in-depth troubleshooting is required. Reference:

https://docs.automic.com/documentation/webhelp/english/AWA/12.2/DOCU/12.2/AWA%20Guides/help.htm#AWA/Integration/integr_SettingUpCallAPI.htm