This setting in the Blockit app determines what happens if an error occurs during the checkout process.

Allow customer to complete checkout:

• If enabled (selected): The customer can finish the checkout even if an error is detected.
• If disabled (not selected): This option is ignored, and the other action applies.

Block customer from completing checkout:

• If enabled (selected): The customer is stopped from finishing the checkout if an error occurs.
• If disabled (not selected): This option is ignored, and the other action applies.