cannot create index - index already existsIssue When accessing trying to create an index an error may be received - index already exists CauseOne reason this may happen - if you navigate to the Tables & Columns module, it can be accessed by Admin users and this provides a list of all existing tables, with columns, column attributes, and indexes. In the case I'm describing the index was for an extended table from where the column was on task, the column was indexed on task alreadyResolutionto find the already indexed column go to the sys_storage_alias table and use the column that was the target of the index as the Element name and the table you were trying to create the index on. Tables & Columns will show the aliased column name as indexed, you just need to find the correct column to look at