If any invalid item, such as a required field without a value, is found when you try to save a record, an error message "Cannot save the record because of error(s) in the following input data." appears.
Below the error message, the names of the fields (item names) whose input value needs to be corrected are listed.

Check the error details displayed below the fields that are causing the problem and modify the input values.
Detailed description on each error is provided in the Solution for each error section.

If "(Cannot display the item name)" appears in the error message, the possible cause is that you do not have the permission to view the field in which an error is detected.
In order to solve the error, you need to ask an app administrator to check the settings of the app.
For details on how to resolve the issue, see the following page.
The error "(Cannot display the item name)" appears and a record cannot be saved (For app administrators)

If the field name mentioned in the error message is not found on the screen to edit or add a record, there is a possibility that the field name is hidden. Look for the field with error details displayed below it, and modify the input value.

If you cannot find the field with error details, there is a possibility that the field is temporarily hidden due to customization using an API or a plug-in.
Ask an app administrator to check if there are any problems in the app's customization or plug-in settings.

Note that, even if a field name is set to be hidden on the app form, the field name will be used for error messages and filter settings. For this reason, make sure to assign a field name that is easy to identify.

Described below are the solutions for each of the errors indicated below the fields.

The field cannot be left empty.
If a "Lookup" field is set as a required field, a value needs to be successfully retrieved by the field.

Dates need to be in the "year-month-day" format, with hyphens used as separators (e.g., 2020-06-05). If your display language for kintone is set to English, dates need to be in the "month/day/year" format, with slashes used as separators (e.g., 06/05/2020).

Time needs to be either in the 12-hour clock format (e.g., 05:25 PM) or the 24-hour clock format (e.g., 17:25), depending on the time format set for each user.
You can change your time format in your Personal Settings.
Personal Settings

For details on restrictions related to date and time values, refer to Field Entry Limits.

"Link" fields have different restrictions for each value type (URL, telephone number, or e-mail address). For details, refer to Field Entry Limits.
If you need to change the field's value type, ask an app administrator.

The number of characters used for the field value needs to be equal to or larger than the number set for Minimum in the Number of Characters (Note: Use integer) section of the field setting.

The number of characters used for the field value needs to be equal to or less than the number set for Maximum in the Number of Characters (Note: Use integer) section of the field setting.

"Number" fields only accept numbers (including mathematical signs, thousands separators, decimal points, and symbols used in E notation).
Note that full-width numbers and thousands separators can be entered only in the desktop view.

Make sure that thousands separators are entered after every three digits, or enter the number without using thousands separators.

If the Prohibit duplicate values check box is selected in the field setting, the value entered into the field needs to be unique across other records in the app.
If you want to disable the prohibition of duplicate values, ask an app administrator.

If the Prohibit duplicate values check box is selected in the field setting, the number of characters used for the field value needs to be 64 or less.

This error message is displayed for "Number" fields. The error is caused due to any one of the following factors:

• The number of digits the field value has is larger than the number set for Total Number of Digits in the Misc Settings.
  The number of digits for the field value needs to be equal to or less than the number set for Total Number of Digits in the Misc Settings, or the number set for Total Number of Digits needs to be changed.
  Setting the Significant Digits of Numbers and the Rounding Method
  
  
• A value that is 65 or more characters long is entered into the field even though the Prohibit duplicate values check box is selected in the field setting.
  If the Prohibit duplicate values check box is selected in the field setting, the number of characters used for the field value needs to be 64 or less.

If you want to change the Misc Settings or disable the prohibition of duplicate values, ask an app administrator.