PLEASE MAKE SURE TO TAKE BACKUP OF EXISTING SETUP - BOTH DATABASE AND SOURCE.
Ensure your server configuration meets the pre-requisites.
Unzip vtigercrm-6ab-7xy-patch.zip into Vtiger CRM Folder.
vtiger7.zip and migrate folder will be unpacked.
Through browser open /migrate path.
Follow the instructions provided on the wizard.
On *nix? Enable write-permission for the apache process owner for smooth migration.
Always download the latest migration patch pointed from our website.
Migration script execution is hungry on time and memory. Ensure your PHP configuration does not limit it.
Make sure you have configured error_reporting well. Wrong configuration can clog the log files.
Review - existing table Engine type to be in InnoDB - (expect sequential tables ending with _seq).