First time caller, long time listener..... I have a well established data validation list function that works great. I am having zero luck trying to add an if statement or other solution that will allow the user to enter values from say 0 to 100 when the if statement is false.. Any help is very appreciated. My Data Validation list funtion is =INDIRECT(SUBSTITUTE($L213," ","_")). When i add an if criteria, i don't know how to allow user to enter a value (????). For example =IF(M3="x",INDIRECT(SUBSTITUTE($L213," ","_")),?????)