To add controls go to Admin > Cards > Card Controls on the account portal after logging in. These controls will be assessed across all cardholders under your tenant. If you would like cardholders to set their own controls, please embed the “Card Controls” no-code component, or enable it in the white label.
Adding & Editing Controls
Control Type
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Allow List: Control values that are ONLY allowed for all cardholders. Not other values will be allowed.
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Deny List: Control values that are NOT allowed for all cardholders. All other values will be allowed.
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Spending Limit: Total spending allowed per cardholder over the time period.
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Transaction Limit: Total number of transaction that are allowed per cardholder over the time period.
Control Scope
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All: Valid across all scopes below. Not available for Allow List or Deny List.
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ATM Withdrawal: Valid for ATM withdrawals. Not available for Allow List or Deny List.
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Merchant ID (MID): Valid for spending at your own merchant using your Merchant IDs (MID), or at 3d party merchants if you gather their MIDs (not publicly available). The Merchant ID (MID) will be returned to Hydrogen at the point of sale on all purchases. Learn more about setting MID controls.
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Merchant Category Code (MCC): Valid for specific categories based on Visa's Merchant Category Code (MCC) designations. For instance, you may want to restrict purchases at certain hotels and airlines which have MCCs. Learn more about setting MCC controls.
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Purchase: Valid for a designated cardholder spending amount. For instance, you may want restrict spending above $1,000 per day. Not available for Allow List or Deny List.
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Transaction Category: Valid for specific transaction categories, based on Hydrogen MCC mappings. For instance, you may want to restrict purchases at Gas Stations.
Control Value
Value(s) of control above. For lists, please separate values by commas.
Limit Value
Only for Spending Limit or Transaction Limit, the amount that each cardholder is limited to, during the period.
Frequency
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One Time: For example, one-time controls will be calculated on transactions that can only happen one-time.
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Daily: For example, daily controls will be calculated based on any given day, and reset the following day.
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Monthly: For example, monthly controls will be calculated based on transactions from March 1 - March 31, and reset on April 1.
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Quarterly: For example, quarterly controls will be calculated based on transactions from January 1 - March 31, and reset on April 1.
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Yearly: For example, yearly controls will be calculated based on transactions from January 1 - December 31, and reset the following January 1 in the next year.
Client Group: Enter a comma separated list of identifiers stored as group in Nucleus /client. Examples of groups may include subscription plan IDs, promotional groups, and other categories of users that should receive different controls. If you wish to group clients, you may do so when you first sign them up in Nucleus as a client or after through a PUT when you receive the onSuccess event back on the card issuance component.
Description: Short text to describe what the card control is used for. This value is only used for informational purposes.