Batch alter on asmt_assessment_instance_question and add columns alter on asmt_assessment_instance / sn_ex_sp_pro are taking time during Vancouver to Xanadu upgrade ~ 1 HourDescription Customers who have a license for Employee Center Pro and are upgrading to Xanadu might run into this issue if they have a large volume of records in asmt_assessment_instance and asmt_assessment_instance_question tables Details 1. As part of app-ex-employee-center-pro-content (version: 30.0.4), some new columns have been shipped in the tables asmt_assessment_instance and asmt_assessment_instance_question. 2. If these tables contain a large volume of records, it can lead to a higher upgrade time as it would take longer to alter these tables to add the new columns 3. Platform ships a clean up job that clears data in these tables that are older than 1 year. We recommend running this job before attempting to upgrade. Reference - https://docs.servicenow.com/bundle/washingtondc-servicenow-platform/page/administer/assessments/task/t_CleanUpAssessmentData.html Steps to Reproduce 1. Select an instance prior to Xanadu with a large volume of data in asmt_assessment_instance and asmt_assessment_instance_question tables. 2. The records in these tables should have entries that are older than a year. 3. Upgrade the instance to Xanadu Workaround Platform ships a clean up job that clears the data in the tables asmt_assessment_instance and asmt_assessment_instance_question that are older than 1 year. We recommend running this job before attempting to upgrade. Reference - https://docs.servicenow.com/bundle/washingtondc-servicenow-platform/page/administer/assessments/task/t_CleanUpAssessmentData.html Related Problem: PRB1771643