Retrieves a custom field with a specified name, or creates one if it doesn't exist. The number of custom fields is limited to 100.
Successful calls to this method always return a field, which can be specified in subsequent calls.
To find an existing custom field without potentially creating a new one, call Get Extended Field or Query Extended Fields.
This method may require higher-level permissions than the caller has, based on their identity and roles and permissions. In these cases, you can ensure the method is called with the required level of authorization by using one of the following:
There is 1 error with this status code.
This method may also return standard errors. Learn more about standard Wix errors.