How to validate payment input?

Question

Is there a way to do a validation at POS when accepting a payment, Let say to limit it to an amount less than 5000?

HELiO Technology, JC · Accepted Answer

Added the following at *validate_order *function
if (plines[i].get_type() === 'cash' && plines[i].get_amount() > 10000) {
this.pos_widget.screen_selector.show_popup('error',{
'message': _t('Invalid Payment'),
'comment': _t(plines[i].get_amount()),
});
return;
}

Niyas Raphy (Walnut Software Solutions) · Answer

Hi JC,
To change the working of the Validate button and to add a validation as said above , you have to make necessary changes in the function *validate_orde*r in the *screen.js* in the point_of_sale module, either you can done inside the code or you can do it by custom module. custom module will be better.

Inside the function you can add the code to check the payment amount and validate it
Thank You

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