Error: Please enter a valid choice value. It must not be greater than 255 characters.

In SharePoint 2013, we can create Choice Type list columns as illustrated in the figure below:

No problem with this approach. And we will have an interface to entry in the list as shown below:

This post is related to the Choice field value. In above example, we have used two values as services are "24 Hours Nursing" and "Physical Therapy". And find no problem while creating the list. But suppose we want to use some larger text as values. For example,

"End of Life Comfort and Care - We have a private area of the facility designated for your care. Specialized programs include soothing music and calming aromatherapy in addition to other tactile, sensory and cognitive activities. We desire to provide love and support for you and your family during this difficult time; and provide a peaceful environment for comfort and rest."

and

"20 Bed Ventilator Recovery Suite - specializing in working with ventilator patients that have been deemed vent dependent. We have a progressive weaning protocol that helps facilitate patient weaning at their own rate. All of our patients’ progress is remotely monitored through our state-of-the-art monitoring system, which provides real-time data and frees up the need for multiple blood gas draws."

As in the first figure we put the choice values as below:

As soon as we pressed the Ok button it will generate the error below:

So, Choice field value must not be greater than 255 characters in SharePoint 2013 .