If you encounter the "Remoting response size exceeded a maximum of 15 MB" error while using the Mass File Download App to search for files, it indicates that the application has reached the limit set by Salesforce. Unfortunately, this limitation cannot be bypassed. The error occurs when your search query produces many files, overwhelming the Salesforce system and triggering this specific error message.
To fix this issue, refine your search filters to obtain more specific and targeted search results.
By narrowing down your search criteria, you can reduce the number of retrieved files and avoid encountering the "Remoting response size exceeded a maximum of 15 MB" error. Consider using additional search parameters such as file types, created dates, or custom/standard fields to limit the scope of your search and retrieve a more manageable set of files. This approach will help prevent overwhelming the Salesforce system and ensure a smoother experience with the Mass File Download App.