Hi, detecting the location of your customer will not always be 100% correct when using a computer, this is because the method used by the browser to detect location makes use of a number of factors to help determine the customer’s location such as your Internet Service Provider.
On devices with GPS such as mobile phones, it will always be more accurate.
If in the case the location is not accurate enough, the customer can shift the marker to their desired location.
You can edit the map instructions text to let customers know this. You can use the following code to change the map instruction text:
https://lpacwp.com/docs/custom-code-samples/checkout-map/change-map-instructions-text/
I recommend using a site specific plugin to do this, see here: https://lpacwp.com/docs/custom-code-samples/creating-a-site-specific-plugin/