I hope I am in understanding correctly. The user will be typing the entry into the combobox itself. If it is not there, then you wish it to be added to the list. If this is the case, you can use the On Not In List of the combo box. This event is used specifically for this reason. Place your curser on this events line and hit F1. Then click Event Procedures and it will tell you how to place the code.
Lemmeno,,, B-) ljprodev@yahoo.com
ProDev
MS Access Applications