It sounds like this is a new behavior, is that right?
If that's the case, the first thing I'd do is get her a full veterinary work-up. Changes in potty behavior can be a sign that something medical is going on, anything from a minor UTI to something like pain or more complex issues like cognitive decline or changes in thyroid function. It's a good idea to thoroughly rule these possibilities out because if there's a medical cause no amount of training will resolve the issue.
If that's the case, the first thing I'd do is get her a full veterinary work-up. Changes in potty behavior can be a sign that something medical is going on, anything from a minor UTI to something like pain or more complex issues like cognitive decline or changes in thyroid function. It's a good idea to thoroughly rule these possibilities out because if there's a medical cause no amount of training will resolve the issue.