Data Validation

[handri]

Good day,

I create a new module for barcodes scanning purpose. Which the barcodes contains specific word and number to identify each items. Also iI had made formula to detect if same item are scan repeatedly and thus data validation will stop the process of scanning. Now i need to

put model in B3 as ORANGE 12345. Where ORANGE are main model follow by numbers as quantity had. I want the validation data stop if any wrong model are input in B3. My validation data formula is as below picture. Thank you.