Skip to main content
Altcraft Docs LogoAltcraft Docs Logo
User guide iconUser guide
Developer guide iconDeveloper guide
Admin guide iconAdmin guide
English
  • Русский
  • English
Login
    User documentationGetting StartedFAQAltcraft glossary
      Profiles and databasesarrow
    • Subscription resourcesManaging databasesSubscriber profileProfiles import and data updateScheduled customer data importAutomatic data collectionBulk customers profiles updateDouble opt-in subscriptionSuppression listsProfile relationsProfile history exportProfile exportCreating a static segment based on import resultsHow to open a CSV fileMatchingTypes of fields in the databaseGlobal control groupsSubscription Manager
      Communication channelsarrow
      • Email channelarrow
      • Email: ISP interactions best practicesEmail: sending domain configurationEmail: setting up and using postmastersБыстрый старт
        Push channelarrow
        • Mobile Pusharrow
        • Settings & implementation
            Integrate your app with Altcraftarrow
          • Providers: push message structureProcessing and adding a subscriptionEvent registration
          Web pusharrow
        • Preliminary Settings
            Web browser push configurationarrow
          • Firebase Cloud messagingApple SafariMozilla Services
          Connecting Web Push to a WebsiteTransferring Data to the PlatformWeb Push SDK Methods
            Import of subscriptions from third-party push servicesarrow
          • Migrating push subscriptions from third-party servicesHow to transfer push subscriptions configured for Safari?Migration from OneSignal
      SMS channel
        Creating mailing from scratcharrow
      • EmailSMSWeb PushMobile PushWhatsAppViber*™Руководство: SMS-рассылка через VK NotifyMAX BotMAX GroupNotifyTelegram BotTelegram Group
      Communication Channels WorkflowРуководство: SMS-рассылка через УТШРуководство: push-рассылка через сервис от "Согласие"
      Segmentationarrow
    • Static SegmentsDynamic SegmentsUpdatable Segments
        Segmentation Conditionsarrow
      • Segmentation by Profile dataSegmentation by Interactions with EntitiesSegmentation by Activity of the channelSegmentation by external dataSegmentation by external SQL tablesSegmentation by Profile structure
      Best Send Time (BST)Logical operators "AND" and "OR"Recommendations for working with segments
      Message templatesarrow
      • Working with message templatesarrow
      • Working in the editorEmail-templateSMS templatePush templateMAX templateTelegram templateWhatsApp templateViber™ templateNotify template
        Visual editor for email-templatearrow
      • Visual editor interfaceAdding blocksElements and their settingsCustom blocksStyle managerLayer manager
      Template fragmentsImage galleryContent personalizationCreating tables based on array elementsBlock editor for email template
        Altcraft Variables and Functionsarrow
      • Logical expressions in messagesLoops in messagesMarket variables in templatesUsing the JSONPath functionality
        Dynamic content in messagesarrow
      • Dynamic HTML contentDynamic JSON contentContent from SQL database in templatesDynamic API content
      Importing and exporting a message templateImporting a template from a third-party serviceExporting a template from Pixcraft
      Mailingsarrow
    • Mailings calendarBroadcast mailingsRegular mailingTrigger mailingMultivariate testingMailing testingMailing schedulePlacement mailing
      Campaignsarrow
    • Working with CampaignsLocal control groups (LCG)Audience expansionAudience building
      Automation scenariosarrow
    • Managing scenariosNodes of the scenarioClassic marketing scenariosStep-by-step welcome scenario guideScenario for automatic notification of the managerAbandoned cart scenario
      Marketarrow
    • Market settings
        Productsarrow
      • How to create a product manuallyHow to import a product from a fileScheduled product importProduct and SKU SegmentsPreparing the YML file
      OrdersMarket variables in message templateGuide: how to send an order confirmation email
      Loyalty programsarrow
    • Loyalty programsLoyalty integration with external systemsБыстрый стартBasic loyalty program use casesOrder SegmentsPromotion codes
      Reports and analyticsarrow
    • Channel reportTraffic report
        Summary reportarrow
      • Summary report metrics
      Cohorts reportLifetime reportFunnels reportGoals reportAudience growth reportClick map reportLoyalty programs reportBounces reportUndeliveries reportReport on global control groups
      Integrationsarrow
      • Action hooksarrow
      • Altcraft Action HooksAction hooks event typesAction Hook Message StructureJSON batch request (HTTP POST action hook)Message to RabbitMQ brokerMessage to RabbitMQ exchangerMessage to Kafka brokerTest event
        Integration of third-party services using Albatoarrow
      • Connecting Altcraft to Albato Launching the welcome scenario using AlbatoTransmitting event dataSetting app a trigger mailingEvent registrationGoogle Sheets and Altcraft integration AmoCRM and Altcraft integration
      Facebook Ads Manager™Google Ads AudiencesMAXYandex.Audience™VK Ads™Static segment synchronizationYandex AppMetrica™Tilda™Lpgenerator™WhatsAppViber*™ integrationIntegration scopeData Transmitted During SynchronizationNotify
      Weblayersarrow
      • Formsarrow
      • Create a formForm constructorAppearanceActions after form activationData analyticsBinding data channel and formsConditional logic in forms and surveysNPS testing
        Pixelsarrow
      • Goal customer actions and scoring
        Pop-upsarrow
      • Creating and publishing a pop-upSetting up a popup in the code editorManaging pop-ups manually via scriptPopup analyticsGuide: pop-up for push subscriptionsCase: Creating a pop-up with the "Wheel of Fortune" widgetBasic cases of placing a popup via the Tag Manager
        Tag Managerarrow
      • Configuring and installing Tag ManagerTrigger typesVariables typesLinking a pixel and the Tag manager
      Settingsarrow
    • Account settingsCustom linksVirtual sendersSending policiesAudit journalTags FAQ
        Users, groups and accessarrow
      • Two-Factor Authentication (2FA)
        Connectionsarrow
      • Connection to Facebook Ads ManagerConnection to Google AdsConnecting to Yandex.Audience™Connection to 360dialogConnection to EdnaConnection to Devino TelecomConnection to SMSTrafficConnection to VK Ads™Connection to MTS OmniChannelCustom Authentication ConnectionOAuth2 connectionBasic Authentication connectionToken Authentication connectionConnection to RapportoMAX connectionConnection to Notify
      Attribute settings
      API requests: where to startarrow
    • Import or update a profileTrigger mailing launchEngage profile in scenario
      Changelogarrow
    • v2026.1.76v2025.4.75v2025.4.74v2025.3.73v2025.2.72v2025.1.71v2024.4.70v2024.3.69v2024.2.68.2v2024.1.68
    Documentation archivelibrary
  • Profiles and databases
  • Double opt-in subscription

Double opt-in subscription

Overview​

Double opt-in (DOI) is a form of mass communication subscription, organized in two steps:

  1. Subscribers provide their contact data and an agreement to receive content.

  2. Subscribers confirm their agreement, clicking a special message hyperlink

Double opt-in is applied over Single opt-in (SOI) when several legal or loyalty factors matter:

  • ISP's sender reputation
  • Compliance with messaging legal regulations
  • Higher marketing mailing ROI
  • Clients' loyalty and lifetime value
caution

Double opt-in is available only for subscriptions to resources.

Step 1: Subscription​

When a client gets subscribed to a Resource, the Subscription status should be set to "Unconfirmed".

Adding an Unconfirmed subscription to a single profile​

Open a client's profile in a Database and go to Subscriptions tab. Select a Resource and its Email channel. Enter a subscription email address or copy it from profile default fields. Select "Unconfirmed" in Status menu and save your changes.

After you save the subscription it obtains an md5 hash identifier and opt-in information block. It may be necessary for subscribers who doubt their subscription legal status. The opt-in info contains date in UTC and the client's IP address.

Adding Unconfirmed subscriptions to multiple profiles​

To organize double opt-in process manually for a group of clients, open a list of Databases or Segments and select Update customer profiles from the context dropdown menu on the right side of Database or Segment tile.

On the following screen you can correct a part of audience you want to subscribe. The update screen uses Altcraft MP segmentation rules.

caution

Profiles bulk update is configured for each Database of a Segment, provided the Segments contains more than one.

In Manage subscription section select Add subscription, specify a resource with Email channel and set Status to "Unconfirmed". You can choose between profile data and other subscriptions data as contacts source:

After all necessary settings are configured, click Update button. A Task will be created where you can watch update process.

note

For API profile import and subscription requests the following property should be added to subscription objects "status": "unconfirmed"

Step 2: Сonfirmation​

Profiles with unconfirmed subscriptions can receive only messages containing a confirmation link. This can be any hyperlink: in the message template add confirm-link attribute to a hyperlink or select Insert link tool and check "This is a confirmation link" option:

After the template is ready, add it to a mailing, using the same Resource you have subscribed your DOI audience to. Message recipients by clicking the confirmation link will verify their intention to receive messages and thus their subscriptions' status will be changed from Unconfirmed to Subscribed.

note

A click on the confirmation link can be a capturing event for trigger mailings and automation workflows. In trigger or workflow settings set Type: Message action —> Confirmed.

Last updated on Mar 12, 2026
Previous
Bulk customers profiles update
Next
Suppression lists
  • Overview
  • Step 1: Subscription
    • Adding an Unconfirmed subscription to a single profile
    • Adding Unconfirmed subscriptions to multiple profiles
  • Step 2: Сonfirmation
© 2015 - 2026 Altcraft, LLC. All rights reserved.