# Rally

* [OH-RallyDev-0056: Changes field does not have data in required format. This field requires an advanced mapping. Verify whether a desired advanced mapping is configured for this field or not. Refer the product guide for the connector CA Agile Central for details.](https://docs.opshub.com/v7.215/help-center-index/troubleshooting-index/errors-index/rally-error-solutions/oh-rallydev-0056)