Generate the NACHA ACH file for a batch
Generates the NACHA-formatted ACH file for a confirmed AP
payment batch. The file is suitable for upload directly to the
entity’s bank for ACH processing. The canonical handler enforces
handler-top SoD via the api-key’s created_by_user_id. Sister
to the GET on this path (download the previously-generated
file). Returned as text/plain (NACHA wire format) or wrapped
in a JSON envelope depending on caller Accept header. Requires
the purchasing:write scope.
Authorizations
API key issued per entity via Settings > Developers > API Keys.
Each key carries scopes (e.g. orders:read, products:write).
Bearer token format: Authorization: Bearer ark_live_ent_Test keys use ark_test_ent_. Both are issued per entity
via Settings > Developers > API Keys.
Path Parameters
Response
NACHA file generated
The response is of type string.

