The survey is conducted every month but not all questions are asked every month.
The survey questionnaires consists of a common core of monthly questions to which are added, depending on the month, some bi-monthly or biannual questions.
- Since the October 2020 campaign, the survey in retail trade and motor vehicle trade and repair has included a set of quarterly questions on the effects of the sanitary crisis.
- Since the April 2021 campaign, a question has been introduced within the framework of the joint harmonised EU programme of business and consumer surveys (BCS). The business managers are asked to indicate how easy it is to predict the future development of their business situation.