Hi Daniel,

W.r.t your query I have gone through your query and tried to replicate it. I have understood your problem and below are few recommendations which I would like to suggest you which caters your need:-

Firstly, the issue in which you have found, that in several occasions your employees have avoided finalizing a sale by pressing F5 to refresh the POS page. This problem can be solved by just upgrading your Odoo Verison 8 to Verion 9. This is because Odoo version 9 has inbuilt feature to handle this. The Order lines does not gets lost even if we press F5. It restores the order lines which were present previously.

Regarding you questions the solutions to them are as follows:-

1) For your query 1, the user cannot be blocked from refreshing the page using F5 because its a function of the browser which allows the user to refresh the page. As its not a Odoo function hence the user cannot be restricted from doing so.

2) For your query 2, for the 1^st part of your query “Keeping items after refreshing the page” is possible just by upgrading your Odoo version 8 to version 9.

But for the 2^nd part of your query “requiring a supervisor password to remove items from a sale”, you would require customization or separate module developed for it as its not possible have those functions by default.

3) For your query 3, “Keeping a log of all user input in a POS session which can be checked later for items that were scanned, but not paid for”,you would require customization or separate module developed for it as its not possible have those functions by default.

We are one of the leading provider of Odoo customized modules, hence in case you require any customization feel free to get in touch with us anytime. We will be glad to help you. To get in touch with us you can simply follow the link below and raise a ticket as per your requirement.

\http://webkul.com/ticket/

Hope this helps.

Cheers!!