What happens if the limit of records in the recycle bin is exceeded?

When the limit of records in the recycle bin is exceeded, the oldest records are automatically deleted. This process ensures that users can continue to utilize the recycle bin for temporarily holding deleted records while maintaining a manageable number of records within that limit. Salesforce sets a cap on how many records can reside in the recycle bin, and to make space for new deleted records, the system proactively eliminates the oldest entries. This automatic management helps by retaining the most recently deleted information, which might be needed for recovery, while ensuring that users aren't interrupted by arbitrary constraints when deleting further records.

The other options do not accurately describe the behavior of the recycle bin. For example, permanent deletion of records does not occur if the limit is exceeded; records are simply pruned. Additionally, new records can still be added, as the removal of the oldest records accommodates this. Finally, there is no function that immediately restores all records when the limit is reached, as the system's design focuses on managing space for deletions rather than bulk restoration.