Welcome to the community @rifat_iom ! Have you gone through our post discussed previously on how to pull data though a predefined barcode (it should help you):
Hi @henryakuete ,
Please see the images below to build a survey form that uses barcode as question type to pull data from the csv file. You could practice this by replacing the barcode (Code) of the csv file with the ones that you have from any of your books (this is the one that i had them with me). Just wanted to show you a demo that if you have a barcode number, you could manage them in your csv file and use the pull data function to get the desired information during your survey.
Image 1 (i…
Besides, here is also a post that deals with barcode constraints:
Hi @MaxH ,
Maybe you could use the following constraint with the barcode question type as shown in the image below:
In the survey tab of your xlsform:
[image]
Reference xlsform:
Barcode 2020 09 10.xlsx (10.0 KB)
My assumption is that maybe you have a barcode allocated for each location. In this case set the constraint for each of those locations as shown in the image above. So in your case you should have 40 barcode acceptable. If a user tries to enter the wrong barcode the system (KoBoColl…
