Thank you for your replay,
yes i already add text-box with button to search .
its working in Customers List , but not work in Contacts list and follow-up forms
please can you help me how to fix the problem in that two forms.
On your contact form your macro is pointing to the Customer List the same as on your main form, you have to change the Search criteria to the Contact as you are searching for contact (I pressume as it is the contact form), you would then have to do the same for the Follow-Up form.
I would consider converting the cmdGo macro to VBA so you can have code behind the button that way it will give you Error Handling.