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Last updated on Aug 28, 2026
You can use custom fields (also called metafields or metadata) in Maxio to collect and store additional information from your customers. Custom fields are supported in Subscription and Customer records, on Public Signup Pages (see Understand Public Signup Pages), and in the Billing Portal (see See the Billing Portal Screens Subscribers Use). This data can also be displayed on Invoices or statements, and exported via the Subscriptions CSV export.
Many merchants use custom fields to gather data that is critical to their operations. This can include collecting details about a purchase or meeting a customer's post-purchase expectations. Examples include:
Additionally, custom fields can be editable by subscribers in the Billing Portal, if a value was entered during signup.
Alternatively, custom fields can be populated with internal-use data. These fields can be hidden from subscribers and used to categorize Subscriptions or Customers. For example, you can use a custom field to define the maximum number of components a Subscription is allowed to purchase.
Every display option is set to No when you create a custom field, so a new field stays hidden from subscribers until you turn on the surfaces you want it to appear on. For each option and what it controls, see Configure Custom Fields.
Keep these limits in mind when you plan your custom fields:
For answers to common questions about how custom fields behave, see Custom Fields FAQ.
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