Start with the evidence
Retain both dates with their source labels. Ask which date a particular review needs instead of overwriting one with the other to make two files look consistent.
Work through the example
A receipt dated 29 September appears on a statement on 1 October. That timing difference is a review clue, not automatic evidence that one source is wrong or that two purchases occurred.
Make the next step clear
Explain the difference in the handoff and let the responsible reviewer determine the relevant period or treatment. Keep the original dates available for later matching.
Keep the source context
These guides concern the evidence behind a business record. A receipt, a reimbursement request and a bank movement may describe related parts of one event, but they are not interchangeable documents. Keep each source and its role visible.