Purpose

This WS gives the opportunity to update external identifier of unidentified person in eHealth.

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1. Only authenticated and authorized OWNER, SPECIALIST, ASSISTANT, RECEPTIONIST, DOCTOR, ADMIN employees can update external_id of preperson.

2. Preperson can be updated by any only in OUTPATIENT legal entity type except PHARMACY, if person_id MPI identifier of preperson is being known (returns after Create preperson).

3. Only external_id field can be updated.

4. Update allowed for prepersons with status = ACTIVE.

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1. Check external_id is not empty.

   1. In case of error - return 422 (external_id should not be empty)

2. Check external_id is unique ? (unique within le?)

   1. In case of error - return 422 (external_id already exists) ?

Update object in DB (mongo)

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