Dynamics GP - Integration Manager - Consistently Crashes during integrations

• Remove all ' and ` characters from your data
• Use tab delimited source files
• Create a new GP user, and login with that to run your integrations
• Purge all logs
• Set logging to NONE

Check other solutions here

https://community.dynamics.com/gp/b/dynamicsgp/archive/2013/05/28/common-tips-and-issues-when-troubleshooting-and-testing-integrations-in-integration-manager