Find constituent IDs for gift - deposit reports

For GiveCampus reporting.

Review the donor email in Online Giving Reporting Settings → Constituent Identifiers → Current Identifiers and verify its mapped external CRM ID. Add constituent_identifier to the intended custom report and select that report for the donation/deposit export. If identifiers were uploaded after gifts, use the authorized backfill for the appropriate scope and verify known samples. Email matching may be ambiguous; a visible suggested ID is not proof the CRM person is correct.