# Build a Multi-Armed Bandit for Dynamic Traffic Optimization

## Overview:

Multi-armed bandit (MAB) testing moves beyond static A/B splits by dynamically optimizing your traffic in real-time. Instead of waiting weeks for a test to conclude, a MAB approach identifies high-performing variants early and automatically shifts traffic toward them.

This creates a high-efficiency feedback loop that:

* **Maximizes Conversions**: Scales winning variants as soon as they show a statistical lead.
* **Reduces "Regret"**: Minimizes the "opportunity cost" of sending traffic to underperforming variants during the data-collection phase.
* **Automates Agility**: Removes the need for manual intervention, allowing your experiments to be self-optimizing and revenue-focused from day one.

<figure><img src="/files/Imd3uykCe16L1XGofICj" alt=""><figcaption></figcaption></figure>

### Decision Logic:

We'll use a **4-hour polling interval** with a **minimum observation window of 72 hours**.

The logic we'll use has a three layers, each acting as a gate before a shift is made:

1. **Layer 1 — Is there enough data?** Each variant needs a minimum sample size before its metrics are trustworthy. We'll set a floor, something like 300+ orders per variant, before any reallocation is considered. Below that threshold, the workflow does nothing.
2. **Layer 2 — Is the signal meaningful?** We compare variants on revenue per visitor. Rather than reacting to any difference at all, we'll require a meaningful gap — a variant must be outperforming the control by at least 5% (or control must be beating all variants by at least 5% each) to qualify for a traffic boost. This prevents micro-fluctuations from triggering constant reshuffling.
3. **Layer 3 — How much do you shift, and when do you stop?** We'll use a stepped reallocation approach rather than slamming all traffic to the winner. A reasonable ladder looks like: start at 50/50, then shift to 60/40, then 70/30, then 80/20. Each step requires the winning variant to maintain its lead across **two consecutive check cycles** before advancing to the next step. This protects against a variant that looks good in one window but regresses in the next. We'll also set a hard cap — never go above 80/20, so the control always retains enough traffic to remain statistically valid and to detect any reversal.

Plus we'll add in **guardrails**. If a previously winning variant starts underperforming (drops below the control), the logic should revert the split back toward 50/50 rather than just stalling. This handles novelty effects or external factors like a sale event skewing results temporarily.

### Softwares Used: <a href="#softwares-used" id="softwares-used"></a>

To build this automation, I'll be using [n8n](https://n8n.io/), but you could chose to build this with GitHub Actions, Make, or other softwares.

## How to Build a Multi-Bandit Automation:

### Step 1: Get Your API Keys <a href="#step-1-get-your-api-keys" id="step-1-get-your-api-keys"></a>

\[[How to get Intelligems API Key](https://docs.intelligems.io/developer-resources/external-api#getting-started)]

### Step 2: Create the Workflow in n8n <a href="#step-2-create-the-workflow-in-n8n" id="step-2-create-the-workflow-in-n8n"></a>

#### **Node 1: Schedule Trigger**

* Type: `Schedule Trigger`
* Mode: `Every Hours`
* Hours Between Triggers: `4`

<figure><img src="/files/YHl8RKvGByPzHhEYyIXG" alt=""><figcaption></figcaption></figure>

#### **Node 2: Account Config**

* Add **"Code"** node
* Select **"Code in JavaScript"**
* Select **"Run Once for All Items"**
* Take the below code, add in your API Keys & paste into n8n:

```
const accounts = [
  {
    client: "Store A",
    apiKey: "ig_live_abc123..." // paste actual key here
  },
  {
    name: "Store B",
    apiKey: "ig_live_xyz789..."
  }
  // Add more accounts here as needed
];

return accounts.map(account => ({ json: account }));
```

<figure><img src="/files/EnLqvi6kYZ1h9YXM7MXG" alt=""><figcaption></figcaption></figure>

#### **Node 3: Get All Running Tests**

1. Click **"+"** after the Schedule node
2. Search for **"HTTP Request"**
3. Configure:
   * **Method**: GET
   * **URL**: `https://api.intelligems.io/v25-10-beta/experiences-list?category=experiment&status=started`
   * **Authentication**: None
   * Enable **Send Headers**
     * **Name**: `intelligems-access-token`
     * **Value**: `{{ $json.apiKey }}`
4. Click "Execute step" to verify it works

<figure><img src="/files/yLY6JTSUfOcvs5Zb97Lk" alt=""><figcaption></figcaption></figure>

#### **Node 4: Flatten the Results**

* Add **"Code"** node
* Select **"Code in JavaScript"**
* Select **"Run Once for All Items"**
* Update the below code so that `InsertOrgId` maps to match the Intelligems organization IDs of your clients (you can find these in Intelligems under Settings > General > Organization Settings), the `name` value is display name for your clients, and the `apiKey` value is the Intelligems API Key for those clients. Then paste this code into the Code section in n8n.

```
const items = $input.all();
const results = [];

const clientMapping = {
  "orgId1": {
    name: "Client 1",
    apiKey: "apiKey1"
  },
  "orgId2": {
    name: "Client 2",
    apiKey: "apiKey2"
  }
};

for (const item of items) {
  const orgId = item.json.organizationId || item.json.organization?.id || (item.json.experiencesList && item.json.experiencesList[0]?.organizationId);
  const clientData = clientMapping[orgId] || { name: "Unknown Client", apiKey: "" };

  const experiencesList = item.json.experiencesList;

  if (experiencesList) {
    for (const test of experiencesList) {
      if (test.status !== "started") {
        continue;
      }

      results.push({
        json: {
          clientName: clientData.name,
          apiKey: clientData.apiKey,
          experienceId: test.id,
          experienceName: test.name
        }
      });
    }
  }
}

return results;
```

<figure><img src="/files/KpIXHf0JElG0IcWizGTJ" alt=""><figcaption></figcaption></figure>

#### **Node 5: Get Test Analytics Data**

1. Add **"HTTP Request"** node
2. Configure:
   * **Method**: GET
   * **URL**: `https://api.intelligems.io/v25-10-beta/analytics/resource/{{ $json.experienceId }}`
   * **Authentication**: None
   * Enable **Send Headers**
     * **Name**: `intelligems-access-token`
     * **Value**: `{{ $json.apiKey }}`
3. Click "Execute step" to verify it works

<figure><img src="/files/vdkzmCHVkw5X2DWmIfGx" alt=""><figcaption></figcaption></figure>

#### **Node 6: Check if enough data is gathered**

* Add **"Code"** node
* Select **"Code in JavaScript"**
* Select **"Run Once for All Items"**
* Update the below code so that the `MIN_ORDERS_PER_VARIATION` & `MIN_DAYS_RUNNING` values match your threshold requirements. Then paste this code into the Code section in n8n.

```
const item = $input.item.json;

const experienceId = item.experienceId;
const experienceName = item.experienceName;
const clientName = item.clientName;
const apiKey = item.apiKey;
const startedAtTs = item.startedAtTs;

// The analytics response
const metrics = item.metrics || [];
const variations = item.variations || [];

// Minimum thresholds before we allow any shift
const MIN_ORDERS_PER_VARIATION = 300;
const MIN_DAYS_RUNNING = 3; // 72 hour lock-in period

// Calculate how long the test has been running
const daysRunning = startedAtTs
  ? Math.floor((Date.now() - new Date(startedAtTs).getTime()) / (1000 * 60 * 60 * 24))
  : 999;

// Build a lookup of metric values keyed by variation_id
const metricsByVariation = {};
for (const m of metrics) {
  const vid = m.variation_id;
  if (!vid) continue;
  if (!metricsByVariation[vid]) metricsByVariation[vid] = {};
  if (m.net_revenue_per_visitor !== undefined) {
    metricsByVariation[vid].netRevenuePerVisitor = m.net_revenue_per_visitor;
  }
  if (m.n_orders !== undefined) {
    metricsByVariation[vid].nOrders = m.n_orders;
  }
  if (m.n_visitors !== undefined) {
    metricsByVariation[vid].nVisitors = m.n_visitors;
  }
  if (m.conversion_rate !== undefined) {
    metricsByVariation[vid].conversionRate = typeof m.conversion_rate === 'object'
      ? m.conversion_rate.value
      : m.conversion_rate;
  }
}

// Build variation summary
const variationSummary = variations.map(v => ({
  id: v.id,
  name: v.name,
  isControl: v.isControl,
  currentPercentage: v.percentage,
  nOrders: metricsByVariation[v.id]?.nOrders ?? 0,
  nVisitors: metricsByVariation[v.id]?.nVisitors ?? 0,
  netRevenuePerVisitor: metricsByVariation[v.id]?.netRevenuePerVisitor ?? 0,
  conversionRate: metricsByVariation[v.id]?.conversionRate ?? 0,
}));

// Gates: both must pass before bandit logic is allowed to run
const tooEarly = daysRunning < MIN_DAYS_RUNNING;
const belowThreshold = variationSummary.some(v => v.nOrders < MIN_ORDERS_PER_VARIATION);

return [{
  json: {
    clientName,
    apiKey,
    experienceId,
    experienceName,
    daysRunning,
    variations: variationSummary,
    readyForBandit: !tooEarly && !belowThreshold,
    skipReason: tooEarly
      ? `Test only ${daysRunning} day(s) old — minimum is ${MIN_DAYS_RUNNING}`
      : belowThreshold
      ? `One or more variations below ${MIN_ORDERS_PER_VARIATION} order minimum`
      : null
  }
}];
```

<figure><img src="/files/7OeQXbtyCLQm3dOqbK3y" alt=""><figcaption></figcaption></figure>

#### **Node 7: If readyForBandit = True**

1. Add an **"If"** node
2. Set the condition as `{{ $json.readyForBandit }}` is equal to `true`

<figure><img src="/files/1LeGd7pXl4JodaxvBao1" alt=""><figcaption></figcaption></figure>

#### **Node 8: Is Signal Meaningful (Round 1)**

* For the **"true"** response only, add **"Code"** node
* Select **"Code in JavaScript"**
* Select **"Run Once for All Items"**
* Copy the below code into n8n:

```
const item = $input.item.json;

const {
  clientName,
  apiKey,
  experienceId,
  experienceName,
  variations,
} = item;

// ─── Config ───────────────────────────────────────────────────────────────────
const MIN_LIFT_TO_SHIFT = 0.05;
const TRAFFIC_LADDER = [
  [50, 50],
  [40, 60],
  [30, 70],
  [20, 80],
];
const MAX_LADDER_INDEX = TRAFFIC_LADDER.length - 1;

// ─── Helper: extract RPV regardless of data shape ─────────────────────────────
const getRPV = (v) => {
  const raw = v.netRevenuePerVisitor ?? v.allMetrics?.netRevenuePerVisitor ?? 0;
  return typeof raw === 'object' && raw !== null ? (raw.value ?? 0) : Number(raw) || 0;
};

// ─── Find control and challengers ─────────────────────────────────────────────
const control = variations.find(v => v.isControl);
const challengers = variations.filter(v => !v.isControl);

if (!control || challengers.length === 0) {
  return [{ json: { ...item, action: "skip", reason: "Could not identify control or challenger" } }];
}

const controlRPV = getRPV(control);

const challengers_with_lift = challengers.map(v => {
  const rpv = getRPV(v);
  const lift = controlRPV > 0 ? (rpv - controlRPV) / controlRPV : 0;
  return { ...v, rpv, lift };
});

// Best challenger = highest RPV
const bestChallenger = challengers_with_lift.reduce((best, v) =>
  v.rpv > best.rpv ? v : best
, challengers_with_lift[0]);

const lift = bestChallenger.lift;

// ─── Find current ladder position ─────────────────────────────────────────────
const currentControlPct = control.currentPercentage;
const currentLadderIndex = TRAFFIC_LADDER.findIndex(([cp]) => cp === currentControlPct);
const resolvedIndex = currentLadderIndex === -1 ? 0 : currentLadderIndex;

// ─── Decision logic ───────────────────────────────────────────────────────────
let newLadderIndex;
let action;
let reason;

const controlDominatesAll = challengers_with_lift.every(v => v.lift < -MIN_LIFT_TO_SHIFT);
const challengerIsWinning = lift > MIN_LIFT_TO_SHIFT;

if (controlDominatesAll) {
  newLadderIndex = 0;
  action = "revert";
  reason = `Control RPV ($${controlRPV.toFixed(4)}) is outperforming all challengers by 5%+ — reverting to 50/50`;

} else if (challengerIsWinning) {

  if (resolvedIndex >= MAX_LADDER_INDEX) {
    newLadderIndex = MAX_LADDER_INDEX;
    action = "hold";
    reason = `Already at max split (${TRAFFIC_LADDER[MAX_LADDER_INDEX][1]}/${TRAFFIC_LADDER[MAX_LADDER_INDEX][0]}). RPV lift: ${(lift * 100).toFixed(2)}%`;
  } else {
    // Signal winning — the flow will wait 4hrs and re-run before acting
    newLadderIndex = resolvedIndex + 1;
    action = "winning";
    reason = `RPV lift is ${(lift * 100).toFixed(2)}% — challenger is ahead`;
  }

} else {
  newLadderIndex = resolvedIndex;
  action = "hold";
  reason = `RPV lift is ${(lift * 100).toFixed(2)}% — below 5% threshold, holding`;
}

// ─── Build output ─────────────────────────────────────────────────────────────
const [newControlPct, newChallengerPct] = TRAFFIC_LADDER[newLadderIndex];

const updatedVariations = variations.map(v => {
  if (v.id === control.id)        return { ...v, newPercentage: newControlPct };
  if (v.id === bestChallenger.id) return { ...v, newPercentage: newChallengerPct };
  return { ...v, newPercentage: v.currentPercentage };
});

return [{
  json: {
    clientName,
    apiKey,
    experienceId,
    experienceName,
    controlName:    control.name,
    controlRPV,
    challengerName: bestChallenger.name,
    challengerRPV:  bestChallenger.rpv,
    liftPct:        parseFloat((lift * 100).toFixed(2)),
    action,
    reason,
    currentSplit:   `${bestChallenger.currentPercentage}/${currentControlPct}`,
    newSplit:       `${newChallengerPct}/${newControlPct}`,
    updatedVariations,
  }
}];
```

<figure><img src="/files/EF4KfbjaFfWiRgYPZRBr" alt=""><figcaption></figcaption></figure>

#### **Note 9: If action = winning or revert**

* Add an **"If"** node
* Set the condition as `{{ $json.action }}` is equal to `winning` OR `{{ $json.action }}` is equal to `revert`

<figure><img src="/files/Rh4afDqJYtti4cAPLHzG" alt=""><figcaption></figcaption></figure>

#### **Node 9: Wait 4 hours**

* For the **"true"** response only, add **"Wait"** node
* Set Wait Amount to `4`
* Set Wait Unit to `Hours`

<figure><img src="/files/833HMDR8IqqjSwdTEIdH" alt=""><figcaption></figcaption></figure>

#### **Node 5: Get Fresh Test Analytics Data**

1. Add **"HTTP Request"** node
2. Configure:
   * **Method**: GET
   * **URL**: `https://api.intelligems.io/v25-10-beta/analytics/resource/{{ $json.experienceId }}`
   * **Authentication**: None
   * Enable **Send Headers**
     * **Name**: `intelligems-access-token`
     * **Value**: `{{ $('Code in JavaScript1').item.json.apiKey }}`
3. Click "Execute step" to verify it works

<figure><img src="/files/ryRJ9kylzFIET4LP5xNr" alt=""><figcaption></figcaption></figure>

#### **Note 10: Is Signal Meaningful (Round 2)**

* Add **"Code"** node
* Select **"Code in JavaScript"**
* Select **"Run Once for All Items"**
* Copy the below code into n8n:

```
const analyticsData = $input.item.json;

// Identity fields from the first bandit check (still in memory from Code in JavaScript3)
const prev = $('Code in JavaScript3').first().json;
const clientName     = prev.clientName;
const apiKey         = prev.apiKey;
const experienceId   = prev.experienceId;
const experienceName = prev.experienceName;

// ─── Config ───────────────────────────────────────────────────────────────────
const MIN_LIFT_TO_SHIFT = 0.05;
const TRAFFIC_LADDER = [
  [50, 50],
  [40, 60],
  [30, 70],
  [20, 80],
];
const MAX_LADDER_INDEX = TRAFFIC_LADDER.length - 1;

// ─── Helper: extract RPV regardless of data shape ─────────────────────────────
const getRPV = (v) => {
  const raw = v.netRevenuePerVisitor ?? v.allMetrics?.netRevenuePerVisitor ?? 0;
  return typeof raw === 'object' && raw !== null ? (raw.value ?? 0) : Number(raw) || 0;
};

// ─── Reshape fresh analytics into variation summary ───────────────────────────
const metrics    = analyticsData.metrics    || [];
const variations = analyticsData.variations || [];

const metricsByVariation = {};
for (const m of metrics) {
  const vid = m.variation_id;
  if (!vid) continue;
  if (!metricsByVariation[vid]) metricsByVariation[vid] = {};
  if (m.net_revenue_per_visitor !== undefined) metricsByVariation[vid].netRevenuePerVisitor = m.net_revenue_per_visitor;
  if (m.n_orders    !== undefined) metricsByVariation[vid].nOrders    = m.n_orders;
  if (m.n_visitors  !== undefined) metricsByVariation[vid].nVisitors  = m.n_visitors;
  if (m.conversion_rate !== undefined) {
    metricsByVariation[vid].conversionRate = typeof m.conversion_rate === 'object'
      ? m.conversion_rate.value
      : m.conversion_rate;
  }
}

const variationSummary = variations.map(v => ({
  id:                   v.id,
  name:                 v.name,
  isControl:            v.isControl,
  currentPercentage:    v.percentage,
  nOrders:              metricsByVariation[v.id]?.nOrders    ?? 0,
  nVisitors:            metricsByVariation[v.id]?.nVisitors  ?? 0,
  netRevenuePerVisitor: metricsByVariation[v.id]?.netRevenuePerVisitor ?? 0,
  conversionRate:       metricsByVariation[v.id]?.conversionRate ?? 0,
}));

// ─── Find control and challengers ─────────────────────────────────────────────
const control     = variationSummary.find(v => v.isControl);
const challengers = variationSummary.filter(v => !v.isControl);

if (!control || challengers.length === 0) {
  return [{ json: { experienceId, experienceName, action: "skip", reason: "Could not identify control or challenger" } }];
}

const controlRPV = getRPV(control);

const challengers_with_lift = challengers.map(v => {
  const rpv  = getRPV(v);
  const lift = controlRPV > 0 ? (rpv - controlRPV) / controlRPV : 0;
  return { ...v, rpv, lift };
});

const bestChallenger = challengers_with_lift.reduce((best, v) =>
  v.rpv > best.rpv ? v : best
, challengers_with_lift[0]);

const lift = bestChallenger.lift;

// ─── Find current ladder position ─────────────────────────────────────────────
const currentControlPct  = control.currentPercentage;
const currentLadderIndex = TRAFFIC_LADDER.findIndex(([cp]) => cp === currentControlPct);
const resolvedIndex      = currentLadderIndex === -1 ? 0 : currentLadderIndex;

// ─── Decision logic ───────────────────────────────────────────────────────────
let newLadderIndex, action, reason;

const controlDominatesAll  = challengers_with_lift.every(v => v.lift < -MIN_LIFT_TO_SHIFT);
const challengerIsWinning  = lift > MIN_LIFT_TO_SHIFT;

if (controlDominatesAll) {
  newLadderIndex = 0;
  action = "revert";
  reason = `Control RPV ($${controlRPV.toFixed(4)}) is outperforming all challengers by 5%+ — reverting to 50/50`;

} else if (challengerIsWinning) {
  if (resolvedIndex >= MAX_LADDER_INDEX) {
    newLadderIndex = MAX_LADDER_INDEX;
    action = "hold";
    reason = `Already at max split (${TRAFFIC_LADDER[MAX_LADDER_INDEX][1]}/${TRAFFIC_LADDER[MAX_LADDER_INDEX][0]}). RPV lift: ${(lift * 100).toFixed(2)}%`;
  } else {
    newLadderIndex = resolvedIndex + 1;
    action = "winning"; // confirmed second cycle — IF node will advance
    reason = `RPV lift is ${(lift * 100).toFixed(2)}% for 2 consecutive cycles — ready to advance`;
  }

} else {
  newLadderIndex = resolvedIndex;
  action = "hold";
  reason = `RPV lift is ${(lift * 100).toFixed(2)}% — lead not maintained after 4 hours, holding`;
}

const [newControlPct, newChallengerPct] = TRAFFIC_LADDER[newLadderIndex];
const splitChanged = action === "winning" || action === "revert";

const updatedVariations = variationSummary.map(v => {
  if (v.id === control.id)        return { ...v, newPercentage: newControlPct };
  if (v.id === bestChallenger.id) return { ...v, newPercentage: newChallengerPct };
  return { ...v, newPercentage: v.currentPercentage };
});

return [{
  json: {
    clientName,
    apiKey,
    experienceId,
    experienceName,
    controlName:    control.name,
    controlRPV,
    challengerName: bestChallenger.name,
    challengerRPV:  bestChallenger.rpv,
    liftPct:        parseFloat((lift * 100).toFixed(2)),
    action,
    reason,
    splitChanged,
    currentSplit:   `${bestChallenger.currentPercentage}/${currentControlPct}`,
    newSplit:       `${newChallengerPct}/${newControlPct}`,
    updatedVariations,
  }
}];
```

<figure><img src="/files/FE34O5suKG7tpDm5ACbz" alt=""><figcaption></figcaption></figure>

#### **Node 11: If action = winning or revert**

1. Add an **"If"** node
2. Set the condition as `{{ $json.action }}` is equal to `winning` OR `{{ $json.action }}` is equal to `revert`

<figure><img src="/files/Rh4afDqJYtti4cAPLHzG" alt=""><figcaption></figcaption></figure>

#### Node 12: Get Full Experience Config <a href="#bonus-enhancement-ideas" id="bonus-enhancement-ideas"></a>

* For the **"true"** response only, add a **"HTTP Request"** node
* Configure:
  * **Method**: GET
  * **URL**: `https://api.intelligems.io/v25-10-beta/analytics/resource/{{ $('Code in JavaScript1').item.json.experienceId }}`
  * **Authentication**: None
  * Enable **Send Headers**
    * **Name**: `intelligems-access-token`
    * **Value**: `{{ $('Code in JavaScript1').item.json.apiKey }}`
* Click "Execute step" to verify it works

<figure><img src="/files/naxxsqsiS6ELGKm44VwW" alt=""><figcaption></figcaption></figure>

#### Node 13: Build the Payload <a href="#bonus-enhancement-ideas" id="bonus-enhancement-ideas"></a>

* Add **"Code"** node
* Select **"Code in JavaScript"**
* Select **"Run Once for All Items"**
* Copy the below code into n8n:

```
const fullExperience = $input.item.json.experience;
const prev = $('Code in JavaScript4').first().json;

const newPctById = {};
for (const v of prev.updatedVariations) {
  newPctById[v.id] = v.newPercentage;
}

const updatedVariations = fullExperience.variations.map(v => ({
  ...v,
  percentage: newPctById[v.id] ?? v.percentage
}));

return [{
  json: {
    apiKey: prev.apiKey,
    experienceId: prev.experienceId,
    bodyString: JSON.stringify({   // <-- stringify here
      experience: {
        ...fullExperience,
        variations: updatedVariations
      }
    })
  }
}];
```

<figure><img src="/files/SoVidRy1QyMkjqvc3PoW" alt=""><figcaption></figcaption></figure>

#### Node 12: Update the Traffic Allocation <a href="#bonus-enhancement-ideas" id="bonus-enhancement-ideas"></a>

* Add **"HTTP Request"** node
* Configure:
  * **Method**: PUT
  * **URL**: `https://api.intelligems.io/v25-10-beta/experiences/{{ $json.experienceId }}`
  * **Authentication**: None
  * Enable **Send Headers**
    * **Name**: `intelligems-access-token`
    * **Value**: `{{ $('Code in JavaScript1').item.json.apiKey }}`
    * **Name:** `Content-Type`
    * **Value:** `application/json`
  * Enable **Send Body**
    * Content Type: `Raw`
    * Body: `{{ $json.bodyString }}`
      * Be sure to use "Expression" & not "fixed"
    * Content Type: `application/json`
* Click "Execute step" to verify it works

<figure><img src="/files/th6UP44K6oclOvk5WYQT" alt=""><figcaption></figcaption></figure>

### You did it! <a href="#bonus-enhancement-ideas" id="bonus-enhancement-ideas"></a>

Now your tests traffic allocations will automatically allocate more traffic to a winning variant.

<figure><img src="/files/Imd3uykCe16L1XGofICj" alt=""><figcaption></figcaption></figure>

### Bonus: Enhancement ideas <a href="#bonus-enhancement-ideas" id="bonus-enhancement-ideas"></a>

* **Dynamically use Primary Metrics** - Instead of always using Revenue per Visitor, dynamically use whatever is set as the primary metric.
* **Use Multiple Metrics** - Use a combination of Revenue per Visitor, Conversion Rate & others before changing traffic allocation.
* **Set this up to only run on certain tests instead of all** - Don't run the Bandit on every single test. Add a filter in your n8n workflow to only target specific experiments.
* **Time-Weighted Decay** - Using a moving window (e.g., the last 7 days of data) ensures your traffic allocation stays "fresh"


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.intelligems.io/developer-resources/external-api/automations-and-guides/build-a-multi-armed-bandit-for-dynamic-traffic-optimization.md?ask=<question>
```

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.