I have developed a custom Drupal field.
All works fine. We are already using the field in production for a year. But the status report for exactly this field says:
Mismatched entity and/or field definitions
I would like to get rid of that message. It gives me a bad feeling about the reliability of my Drupal installation.
I could write an update hook if I knew in detail what is wrong.
How can I find out what exactly does not match?