_:ne7e689b62fde4a75bf70c6d730800f7fxb49
<http://schema.org/text>
"Strange, because in the file sppc_v42_install.sql the column customers_group_id is added as one of the first things:\n\nALTER TABLE `specials`\nADD customers_group_id smallint UNSIGNED NOT NULL default '0';\n\n\n \n\nYou didn't add the define for the table customers_groups to the file admin/includes/database_tables.php"
<https://forums.oscommerce.com/topic/53436-seperate-pricing-per-customer-v35/?page=173>