A salesperson asks to remove a duplicate customer. Finance still needs the invoices, and the warehouse needs to look up older deliveries. Before adding a Delete button to a business application, decide what should happen to every record that depends on the customer.
Separate routine archiving from permanent deletion
For an inactive customer, an archive flag can remove the record from new-order menus while preserving historical links. Decide whether archived customers remain searchable by authorised staff, whether they can be reactivated, and what happens to pending orders. A duplicate often needs a different process. Confirm the surviving customer ID and review the linked orders before moving them. Similar names and shared phone numbers are poor evidence on their own.
Choose a rule for every relationship
PostgreSQL uses foreign keys to keep references between tables valid. Its constraint documentation explains the actions available when a referenced row is deleted. For an order that must retain its customer link, a restrictive deletion rule can block an attempted delete. A cascade may fit short-lived dependent records that have no independent purpose, such as temporary draft details. Setting a reference to null suits a relationship that is genuinely optional and whose application can handle an absent value.
Ask the developer for a list of dependencies, including attachments, external systems and reports. A foreign key can enforce the relationship inside the database. It cannot tell a connected CRM that a customer was archived. Decide how integrations discover status changes and how staff reconcile an incomplete update. The guide to keeping related application saves together covers a complementary safeguard inside one database.
Test the process against real decisions
- Archive a synthetic customer with open and closed orders. Confirm the customer disappears from new-order selection while authorised staff can open the old orders.
- Attempt permanent deletion using the same application role and any scheduled cleanup job. Confirm the intended database protection and check that staff see an actionable error.
- Test reactivation and a duplicate merge separately. Compare order counts and totals before and after, and check that downstream systems receive the correct record identifier.
An archive flag keeps data in storage. If the business needs a separate retention or erasure process, agree its scope with the people responsible for records and privacy, including what happens to exports and backups.
ITZ’s custom software development service can review how customer status affects orders, finance and integrations. Share one record type your team needs to retire safely.
Review your customer archive workflow
Describe what users should see after archiving, the history you need to retain and the systems connected to the customer record. Review Your Customer Archive Workflow
