Records from the D&B storage can be fetched again without calling D&B. However, in order to make sure no outdated data is used, the stored D&B records can only be used for 90 days (e.g. to calculate the CU).
If a D&B record is under monitoring, the data in the D&B storage will always be up to date, so the record should also be used, even if its last update date is longer than 90 days. This helps to reduce traffic to D&B and might also reduce costs for the customer due to less quota consumption.