List external ids
List the external ids linked to a customer. These are the identifiers this customer carries in connected systems (a Stripe customer id, a HubSpot company id, and so on), and they are what lets an importer recognise the same customer across syncs.
Authentication
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
1 <= length1 <= lengthResponse Body
application/json
curl -X GET "https://example.com/companies/string/customers/string/external-ids"{ "externalIds": [ "string" ]}Merge
Merge duplicate customers into one, in a single transaction. Creates the customer described by `newCustomer`, repoints the transaction categorizations, subscriptions, and external ids of every id in `customerIds` onto it, then deletes the originals. Use this rather than delete when the same account was imported twice: it keeps revenue history and MRR continuous, where a delete would cascade the subscriptions away. Returns the merged customer with its `logoUrl` and combined `externalIds`.
Update external id
Replace a customer'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 customer in the same company is refused with 409, which keeps imports from splitting one customer across two records.