ArcGIS Online FeatureWriter failing with Fatal Error on during dynamic writing

Not the answer to your question, I’m not aware of any options Ignore Failed Features and carry on writing with AGOL but have you tried using a TextEncoder with Encoding Type set to URL on the offending field?

Thanks for your reply.

I have added a pythoncaller that encodes data for the columns that I know ca thrown an error.

The issue is that It is part of the dynamic workspace. there are over hundred layers that are being processed in this dynamic workspace. If I try to encode all the columns for each of these layers, it will slow down the workspace. Currently, even if one column in any of the 100+ layers have problematic data, the whole translation crashes and there is no way to handle the exception.

the other thing is that I can’t encode using TextEncoder because the data is in list of dynamic schema so currently I am encoding the columns that I have problematic data using pythoncaller.

This is more of a workaround rather then an actual solution but how about splitting up your workbench into two? That way you can use a workspacerunner to run the second workbench that actually updates the feature layers and you run this once for each layer you want to update. That way it will be able to continue even if 1 layer might fail. Of course you will increase your overhead this way but whether or not that is problematic really depends on the situation. 

Edit: You can even do it in such a way that you can sort of create groups of 10 layers do update at once if one by one is too slow.