Yes, so we were doing a Magento upgrade project for one of the post service client wherein we had to take care of migration from Magento 1 to Magento 2 and we had to look into all the historical records that needs to be migrated as well as new capabilities that needs to be mapped with the existing capabilities. It was a new setup and after doing azure analysis, gap analysis, data mapping, we started the project. The major obstacles were that due to changes in data structure, due to changes in tables of Magento, there were errors while users were accessing. Though testing was there but what we did was we had created a phase wherein we knew that these bugs would come and we would solve them as and when they come.
