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I'm just a beginner to use this AppSheet and I figure out the solution to improve my problem for a long time but I still cannot improve it. Please help me.
My AppSheet is about "Appointment Data" for booking time snd date to send material. I have a problem with "Duplicate Data" When my users, open the form for booking time at the SAME TIME!! . My Appsheet will receive " Duplicated Data " as my picture ( We have 5 Users open the form at The Same time and the system also record duplicated data in the system )
I tried to protect this problem for a long time with many Expressions in AppSheet but still cannot improve it. If you have the best solution or I have to try something else please teach me. I use this AppSheet with my Organization and I cannot achieve my project to use this app completely.
Please. I cannot find the solution anymore.
Thank you very much.
PS. Picture of My Form for Booking
