Mocking & Simulator (UAT)

Testing without a live bank (mock mode)

Payer VPA	Result
`user@success`	`ACTIVE`
`user@fail`	`REJECTED`

Create mandate with one of these VPAs → wait 1–2 min → webhook fires with the result.

Amount	Result
`>= 100`	`SUCCESS`
`< 100`	`FAILED`

Mock UMN format: MOCK-UMN-<20 random chars>.

Base URL: https://checkout-uat-v2.enkash.in/v1/upi-autopay-simulator/{umn}

Returned in paymentDetail.checkoutUrl when creating with mandateCreationType = CHECKOUT (no payer VPA).

Open the link, then click Approve or Reject.

APPROVE → ACTIVE

REJECT → REJECTED

**API Create UPI Mandate ** with payer.vpa = user@success, a unique referenceId, and a valid firstDebitAmount (e.g. 1 with MAX).

Wait for webhook or API Get status (enquiry) → ACTIVE (1–2 min).

API Notify Mandate with amount >= 100 (needed before executing).

API Execute UPI Mandate with amount >= 100 → SUCCESS + webhook.

API Create with payer.vpa = user@fail.

Wait for webhook or API Get status (enquiry) → REJECTED.

Don't notify/execute this mandate — create a new one to retry.

API Create with mandateCreationType = CHECKOUT (no VPA).

Open the returned simulator link.

Click Approve → webhook fires ACTIVE.

Continue with API Notify → API Execute as in the happy path.