Operations you can carry out during the processing to export data to a file are different from the operations you can carry out during the processing to import a file.
The following explains what kind of record operations you can perform in each case.

You can add or edit records while you are exporting data to a file.
Note that the exported file will contain the data at the time when the processing to export data is started.

The following operations are restricted while you are importing data from a file:

• Adding records
• Editing a record
• Deleting records
• Importing a file
• Exporting a file
• Updating an app
• Deleting an app

Therefore, if you add or edit records to the app and click Save while a file is being imported to the app, the operation to save the changes may be timed out.

If you want to import a file with a large number of records, you may want to consider importing it in the following ways:

• Import the file during the period when the app is less accessed by users.
• Divide the file into several files so that you can import a file of smaller size.