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1. Validate merge_person_id UUID

   1. In case of error - return 422

2. Find preperson by id in mpi.prepersons

   1. In case of error - return 404 (Preperson not found)

3. Check preperson status is active in mpi.prepersons

   1. In case of error - return 409 (Preperson is not active)

4. Check if exists another preperson merge requests with status NEW or APPROVED for this preperson

   1. if exists - update status of another requests to CANCELLED

5. Check if preperson has at least one episode( status!= "entered_in_error")

   1. if no episodes - return 409 (Preperson has no episodes)

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• If type is OTP or THIRD_PERSON - Generate verification code as on create patient request process.

• If type is OFFLINE - Generate uploaded URLs as on create patient request process. Set il.merge_requests.documents

In case no auth methods found (null) - return error with code 409 (Person has no auth methods)

Save object to DB

il.merge_requeststable

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