In the "BASE" worksheet, enter various customer data (NIF, name, address, telephone, email). I have a "DATA" worksheet where you have a list of multiple clients.
I need to create a button in the "BASE" worksheet that copies the client data to the "DATA" worksheet if it does not exist based on the NIF but if it exists it updates the information in the "DATA" worksheet.
I also need to create a button in the "BASE" worksheet that searches the WS "DATA" for a certain "NIF" and copies the information to the WS "BASE".
I hope you can help me. I do not have much experience with vba and this is going to save me a lot of work.
Thank you