Back to Back (deprecated)

This integration pattern applied to PayIn v1 (POST /api/v1/payin) with a separate backoffice flag. It is deprecated — use PayIn v2 instead.

Direct PayIn integrations are handled by PayIn v2 (POST /api/v2/payin). You no longer need a separate backoffice flag or a dedicated B2B endpoint. For legacy v1 request/response details, see POST Initiate PayIn (v1 — deprecated).

What changed

Before (v1 + B2B)	Now (v2)
Separate B2B configuration in backoffice	Choose the experience with request fields
Different response shapes per integration	Consistent `payment_url` / `payment_information` model

PSE direct

Send customer_data.bank and customer_data.person_type with payment_method: "PSE". The API returns payment_information.payment_url with the PSE redirect link. See Colombia PayIn for request and response examples.

Other methods

Hybrid methods (EFECTY, BREB, BREB_QR) return both payment_url and payment_information in a single v2 call. See Colombia PayIn.