ArcGIS Online does not recognize a printing service if it is not in the default printing directory:
http://<servername>/arcgis/rest/services/Utilities
Last Published: April 20, 2015ArcGIS Online
Bug ID Number
BUG-000086520
Submitted
March 31, 2015
Last Modified
June 5, 2024
Applies to
ArcGIS Online
Version found
3.7
Status
Known Limit
After review by the development team, it has been determined that this issue is related to a known limitation with the software that lies outside of Esri's control. The issue's Additional Information section may contain further explanation.
Additional Information
The an executionType must be esriExecutionTypeSynchronous, not esriExecutionTypeAsynchronous
Workaround
Only publish the default print service if it is going to be used in ArcGIS Online.