Withdraw an Approval Request If you submitted a record for approval but suddenly need to update information in the record, recall the approval request. However, whether you can recall an approval request depends on how your admin configured the approval process that the record was submitted to.
Respond to an Approval Request When you receive an approval request, respond to it by approving, rejecting, or reassigning it. Depending on which Salesforce experience you’re using, you have different options. Approval request comments are limited to 4,000 characters. In Chinese, Japanese, or Korean, the limit is 1,333 characters.