How to create and verify your account
A careful account setup helps you avoid access problems and keeps your contact details ready for future verification.
Read guideKnowledge library
Detailed guides for real workflows
Search twenty practical articles with step-by-step instructions, troubleshooting, safety notes, and context to prepare before support.
20 articles
Complete first-login checklist
Use this short sequence to orient yourself, verify critical details, and establish safer account habits on the first day.
Read guideHow to update profile information
Keep account contact information accurate so notices and recovery steps reach the right person.
Read guideHow to improve account security
Reduce account risk with strong credentials, careful session management, and a repeatable response plan.
Read guideUnderstanding payment statuses
Learn what common transaction labels communicate and what to check before taking action.
Read guideWhat to do when a payment is declined
A declined result should be handled calmly, without repeated attempts or requests for sensitive card data.
Read guideHow pending transactions work
Pending transactions are incomplete processing events; this guide helps you decide when to wait and when to investigate.
Read guideUnderstanding refunds and reversals
Use the event history to distinguish a post-completion refund from a cancellation, void, or automatic reversal.
Read guideHow to track a refund
Follow a refund from creation to its latest recorded outcome without confusing it with the original charge.
Read guideUnderstanding payout statuses
Read payout records alongside available and pending balances so reconciliation stays accurate.
Read guideWhat can delay a payout
Identify common timing factors and gather a clean reconciliation before escalating a delayed payout.
Read guideIntroduction to API authentication
Plan authentication around secret isolation, least privilege, safe environments, and observable failures.
Read guideHow to troubleshoot common API errors
Use status families, request IDs, validation details, and controlled retries to diagnose integration failures.
Read guideWebhook delivery troubleshooting
Trace webhook delivery from receipt through signature checks, queueing, idempotent processing, and response timing.
Read guideWhat information to include in a support request
A concise, well-structured request helps support understand impact and reproduce the issue without exposing sensitive data.
Read guideHow to search and identify a transaction
Use multiple safe fields to distinguish the correct transaction from similar or duplicate-looking activity.
Read guideHow to protect API credentials
Treat every secret key as a powerful credential: isolate it, limit access, rotate it, and prevent accidental logging.
Read guideBrowser troubleshooting guide
Resolve common display, session, and form problems with low-risk browser checks before clearing useful local data.
Read guideWhen to cancel or void a payment
Choose an available cancellation action only after confirming the payment state and checking for existing adjustments.
Read guideHow to reconcile fees and payouts
Build a traceable reconciliation from transaction activity through adjustments, fees, and the payout total.
Read guide About this help topic
People sometimes use the phrase merchant mx while looking for practical payment-workspace guidance. This independent welcometothemx resource focuses on clear support information without claiming affiliation with a third-party brand.
A merchant mx search can cover many workflows; use the steps on this page and verify actions against the settings available in your own account.