SaaSFlow
DevelopersAPIReferencevendors

List external ids

List the external ids linked to a vendor. These are the identifiers the vendor carries in connected systems, and they are what lets an importer recognise the same supplier across syncs.

Authentication

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GET
/companies/{companyId}/vendors/{vendorId}/external-ids

Authorization

Authorization<token>

A SaaSFlow API key (format sf_…) or an OAuth bearer token. Paste only the key — the proxy adds the Bearer prefix. Create an API key in Settings → Company settings → API keys — see API keys.

In: header

Path Parameters

companyId*string
Length1 <= length
vendorId*string
Length1 <= length

Response Body

application/json

curl -X GET "https://example.com/companies/string/vendors/string/external-ids"
{  "externalIds": [    "string"  ]}

Merge

Merge duplicate vendors into one. Creates the vendor described in the body, repoints the transactions and external ids of every id in `vendorIds` onto it, then deletes the originals. Use this when the same supplier came in under several spellings, since it keeps spend history in one place instead of scattering it. Returns the merged vendor.

Update external id

Replace a vendor's external ids with the list you send. This is a full replacement, not a merge, so include the ids you want to keep. An id already claimed by a different vendor in the same company is refused with 409.