What happens to the subsequent requests in a batch if one request errors out?

In a batch processing scenario within Salesforce, if one of the requests fails or encounters an error, it does not automatically cancel or discard subsequent requests. Instead, subsequent requests are allowed to proceed by default, meaning they can continue processing even if an earlier request fails. This design allows for more resilient batch processing, where individual request failures do not halt the entire batch operation, enabling successful requests to complete and provide results where possible.

This behavior is particularly beneficial in integrations where certain operations may be dependent on conditions or data states that could lead to errors; it allows the overall processing to continue while still logging any errors encountered. As a result, users or administrators can later review the batch logs to identify and resolve issues without affecting the successful transactions that have already occurred.