`invalid_exact_evm_payload_authorization_valid_after`

The payment authorization is not valid yet.


Reported by	the facilitator, during verify
Usually fixed by	the buyer

Cause

The authorization's validAfter timestamp is later than the facilitator's clock.

Fix

Buyer: check the system clock; one running ahead causes this.
Buyer: set validAfter to 0, as the official client does.

About this reference

Causes are taken from the source of @x402/evm 2.31. Other facilitators and later versions may use the same code for slightly different checks. See all x402 errors.