Performance marketing teams and media buying agencies run recurring, high-frequency spend across a small number of well-known advertising platforms. Mainsail Cards supports card program workflows that issue a dedicated virtual card per ad account or campaign budget, apply merchant and velocity rules aligned to advertising merchant categories, and return a clean one-card-to-one-budget mapping for finance and partner reporting.
Active ad cards
24
Allowed categories
4
Campaign budget position
Demo data74% of approved limit
92% of approved limit
21% of approved limit
Interface example only. Not connected to live card, payment, KYC, or banking systems.
Target customers
Why a card program
Transaction flow
Budget request and approval
Dedicated virtual card issuance
Platform authorization
Spend monitoring
Budget change or shutdown
Reconciliation and reporting
A campaign owner submits an ad account, platform, budget period, and spend cap. The request routes through an internal approval workflow before any card credential is created.
Subject to partner approval, a virtual card is created for that single ad account or client budget, with the approved limit, an expiry aligned to the campaign period, and advertising merchant categories enabled.
The card is attached to the advertising platform billing profile. Authorization requests are evaluated against the card limit, allowed merchant categories, and velocity rules before approval.
Authorizations, settlements, refunds, and declines stream into the program dashboard, tagged with the campaign, ad account, and owner that the card represents.
Limits can be raised or lowered for the next period, and a card can be paused or closed the moment a campaign ends, without disturbing any other ad account.
Because each card maps to one budget, settlement data reconciles directly to campaign records, agency client statements, and partner-facing operating reports.
Card and transaction characteristics
Merchant categories and limit structures shown here describe the intended program design and are configured with applicable program partners before launch.
Card configuration
Risk and compliance
Advertising cards are configured for advertising and platform billing categories only. Attempts to use the credential in unrelated categories such as cash, gaming, or crypto-related merchants are declined and flagged for review.
Sudden increases in authorization frequency, repeated small-value authorizations, or spend that departs from an ad account baseline are surfaced to the review queue for operator follow-up.
Because credentials are virtual and scoped to one billing profile, a compromised card can be closed and replaced without pausing other campaigns and without reissuing physical plastic.
Agency programs keep each client budget on its own card and reporting line, so client spend, refunds, and disputes remain individually traceable throughout the audit trail.
Ad platform credits and refunds are matched back to the originating card and campaign record, so returned value cannot be quietly redirected to unrelated spend.
Partner review
Mainsail Cards is a financial technology brand operated by MAINSAIL LLC and is not a bank. Card issuance, program scope, spend limits, and merchant category configuration for this scenario are subject to approval by applicable platform partners, issuing banks, card networks, and regulatory requirements.
Explore more
Segregated cards per client engagement so agencies can spend on behalf of clients with clean attribution, caps, and billable reporting.
Read scenarioIssue employee cards with role-based limits, category rules, receipt capture, and same-day suspension when someone changes teams or leaves.
Read scenarioA dedicated card per vendor subscription, so renewals are visible, unused tools can be cancelled at the card level, and shadow IT stops before it starts.
Read scenarioWe can share the underlying program documentation, control matrix, and operating workflow detail for this use case through partner review channels.
Contact partnerships