Its like this, I am creating a database in which I am inserting different well locations and each of the communication errors that occur. I have found that the ONLY primary key that I can use is the LSD location (example 6-36-064-09w6/00). I have created a table called Comms Issues, which includes the following fields: Location Physical Operator Legal Operator Open Date Status Pirority Working Interest Previous Day % Previous Hours and Comments. The problem I run into, as I am inserting previous data from months past, is usually one well will have only one communications problem per day, but they definitely have more than one communication problem all together (example 1 years time). Access will not let me insert the same well twice in one table, how do you suggest I get around this problem?