Explanation
One possible reason why a manager receives an error when trying to approve a record is that the user in the next approver step is inactive or missing, which means there is no valid user to assign the record to after approval. To troubleshoot this issue, an administrator should check if the user in the next approver step is active and exists in Salesforce; if not, they should activate or create the user or change the approval process to assign the record to another user. Adding a delegated approver for the next approver in the process does not solve this issue because delegated approvers are only used when approvers are unavailable; they do not replace approvers who are inactive or missing. Updating the field level security to view on fields that are updated in the process does not solve this issue because field level security does not affect approval processes; it only affects what fields users can see or edit on page layouts. Reviewing the page layout to ensure fields updated in the process are visible does not solve this issue because page layouts do not affect approval processes; they only affect what fields users can see or edit on page layouts. References:
https://help.salesforce.com/s/articleView?id=sf.approvals_considerations.htm&type=5

Explanation
Two functions that an administrator should use when creating a validation rule are:
Error condition formula, which defines when an error should occur based on record fields and values Error message location, which specifies where on the page layout an error message should appear when triggered by an error condition formula Formula return type and rule active date are not functions used for validation rules. References:
https://help.salesforce.com/s/articleView?id=sf.validation_rules_overview.htm&type=5

Explanation
Profile assignment and page layout assignment are two assignments that should be used to display a new record type to users. Profile assignment determines which profiles can access a record type and which record type is the default for each profile. Page layout assignment determines which page layout is assigned to each record type and profile combination. References:
https://help.salesforce.com/s/articleView?id=sf.customize_recordtype_assign.htm&type=5https://help.salesforce