Adding negative keywords while optimizing your campaigns is of course the most normal thing in the world. But it can sometimes happen that you have been too enthusiastic and that exclusion words have ended up in a list that will block keywords in other campaigns. Sin of course, because now there is no traffic on these keywords anymore. That's why Google has created a nice script that checks all keywords and exclusion words / lists to make sure that no keywords are blocked. Because blocked keywords also do not provide Google with money.

MCC Script

You can apply the script below in your MCC and thus check all your accounts in one go. The script uses the executeInParallel function, which must ensure that the analysis runs faster. Pay attention, however, that you therefore can not control more than 50 accounts at the same time. Use account labels to make a selection. There is also a script that you can run at the account level.

Settings

If you look through the script, you will automatically see 'var CONFIG = {'. Below are some things that you need to complete before you can run the script.

  • SPREADSHEET_URL: You must first make a copy of the Google Spreadsheet so that the data can end up there. The URL you copy must always contain '/ edit', but you can omit what comes after it.
  • RECIPIENTS_EMAILS: Enter the email addresses where you want to receive notifications about the conflicts found.
  • ACCOUNT_LABEL: Label your accounts to ensure that you do not check more than 50 accounts.
  • CAMPAIGN_LABEL: You can also label campaigns so that the script only checks what you want.

Scheduling: Daily will often be sufficient. If you make many changes to keywords / exclusion words, run the script every hour.

Script
// Copyright 2015, Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

/**
 * @name Negative Keyword Conflicts - Manager Accounts
 *
 * @overview The Negative Keyword Conflicts script generates a spreadsheet
 *     and email alert if a Google Ads account has positive keywords which are
 *     blocked by negative keywords. See
 *     https://developers.google.com/google-ads/scripts/docs/solutions/adsmanagerapp-negative-keyword-conflicts
 *     for more details.
 *
 * @author Google Ads Scripts Team [This email address is being protected from spambots. You need JavaScript enabled to view it.]
 *
 * @version 1.3.3
 *
 * @changelog
 * - version 1.3.3
 *   - Added column for negative keyword list name.
 * - version 1.3.2
 *   - Added validation for external spreadsheet setup.
 * - version 1.3.1
 *   - Fix bug where campaigns with multiple shared negative keyword lists were
 *     not handled correctly.
 * - version 1.3.0
 *   - Fix bug where in certain cases phrase match negatives were incorrectly
 *     reported as blocking positive keywords.
 * - version 1.2.1
 *   - Improvements to time zone handling.
 * - version 1.2
 *   - Improved compatibility with Large Manager Hierarchy template.
 *   - Add option for reusing the spreadsheet or making a copy.
 * - version 1.1
 *   - Bug fixes.
 * - version 1.0
 *   - Released initial version.
 */

var CONFIG = {
  // URL of the spreadsheet template.
  // This should be a copy of https://goo.gl/M4HjaH.
  SPREADSHEET_URL: 'YOUR_SPREADSHEET_URL',

  // Whether to output results to a copy of the above spreadsheet (true) or to
  // the spreadsheet directly, overwriting previous results (false).
  COPY_SPREADSHEET: false,

  // Array of addresses to be alerted via email if conflicts are found.
  RECIPIENT_EMAILS: [
    'YOUR_EMAIL_HERE'
  ],

  // Label on the accounts to be processed.
  // Leave blank to include all accounts.
  ACCOUNT_LABEL: '',

  // Label on the campaigns to be processed.
  // Leave blank to include all campaigns.
  CAMPAIGN_LABEL: '',

  // Limits on the number of keywords in an account the script can process.
  MAX_POSITIVES: 250000,
  MAX_NEGATIVES: 50000
};

/**
 * Configuration to be used for running reports.
 */
var REPORTING_OPTIONS = {
  // Comment out the following line to default to the latest reporting version.
  apiVersion: 'v201809'
};

function main() {
  validateConfig();
  var accountSelector = AdsManagerApp.accounts();

  if (CONFIG.ACCOUNT_LABEL) {
    accountSelector = accountSelector
      .withCondition('LabelNames CONTAINS "' + CONFIG.ACCOUNT_LABEL + '"');
  }

  accountSelector.executeInParallel('processAccount', 'processResults');
}

/**
 * Finds conflicts and returns the results in a format suitable for
 * executeInParallel().
 *
 * @return {string} JSON stringified list of conflict objects.
 */
function processAccount() {
  return JSON.stringify(findAllConflicts());
}

/**
 * Outputs conflicts to a spreadsheet and sends an email alert if applicable.
 *
 * @param {Array.<Object>} results A list of ExecutionResult objects.
 */
function processResults(results) {
  var hasConflicts = false;
  var spreadsheet = SpreadsheetApp.openByUrl(CONFIG.SPREADSHEET_URL);
  if (CONFIG.COPY_SPREADSHEET) {
    spreadsheet = spreadsheet.copy('Negative Keyword Conflicts');
  }
  initializeSpreadsheet(spreadsheet);

  for (var i = 0; i < results.length; i++) {
    if (!results[i].getError()) {
      hasConflicts = outputConflicts(spreadsheet, results[i].getCustomerId(),
          JSON.parse(results[i].getReturnValue())) || hasConflicts;
    } else {
      Logger.log('Processing for ' + results[i].getCustomerId() + ' failed.');
    }
  }

  if (hasConflicts && CONFIG.RECIPIENT_EMAILS) {
    sendEmail(spreadsheet);
  }
}

/**
 * Finds all negative keyword conflicts in an account.
 *
 * @return {Array.<Object>} An array of conflicts.
 */
function findAllConflicts() {
  var campaignIds;
  if (CONFIG.CAMPAIGN_LABEL) {
    campaignIds = getCampaignIdsWithLabel(CONFIG.CAMPAIGN_LABEL);
  } else {
    campaignIds = getAllCampaignIds();
  }

  var campaignCondition = '';
  if (campaignIds.length > 0) {
    campaignCondition = 'AND CampaignId IN [' + campaignIds.join(',') + ']';
  }

  Logger.log('Downloading keywords performance report');
  var query =
    'SELECT CampaignId, CampaignName, AdGroupId, AdGroupName, ' +
    '       Criteria, KeywordMatchType, IsNegative ' +
    'FROM KEYWORDS_PERFORMANCE_REPORT ' +
    'WHERE CampaignStatus = "ENABLED" AND AdGroupStatus = "ENABLED" AND ' +
    '      Status = "ENABLED" AND IsNegative IN [true, false] ' +
    '      ' + campaignCondition + ' ' +
    'DURING YESTERDAY';
  var report = AdsApp.report(query, REPORTING_OPTIONS);

  Logger.log('Building cache and populating with keywords');
  var cache = {};
  var numPositives = 0;
  var numNegatives = 0;

  var rows = report.rows();
  while (rows.hasNext()) {
    var row = rows.next();

    var campaignId = row['CampaignId'];
    var campaignName = row['CampaignName'];
    var adGroupId = row['AdGroupId'];
    var adGroupName = row['AdGroupName'];
    var keywordText = row['Criteria'];
    var keywordMatchType = row['KeywordMatchType'];
    var isNegative = row['IsNegative'];

    if (!cache[campaignId]) {
      cache[campaignId] = {
        campaignName: campaignName,
        adGroups: {},
        negatives: [],
        negativesFromLists: [],
      };
    }

    if (!cache[campaignId].adGroups[adGroupId]) {
      cache[campaignId].adGroups[adGroupId] = {
        adGroupName: adGroupName,
        positives: [],
        negatives: [],
      };
    }

    if (isNegative == 'true') {
      cache[campaignId].adGroups[adGroupId].negatives
        .push(normalizeKeyword(keywordText, keywordMatchType));
      numNegatives++;
    } else {
      cache[campaignId].adGroups[adGroupId].positives
        .push(normalizeKeyword(keywordText, keywordMatchType));
      numPositives++;
    }

    if (numPositives > CONFIG.MAX_POSITIVES ||
        numNegatives > CONFIG.MAX_NEGATIVES) {
      throw 'Trying to process too many keywords. Please restrict the ' +
            'script to a smaller subset of campaigns.';
    }
  }

  Logger.log('Downloading campaign negatives report');
  var query =
    'SELECT CampaignId, Criteria, KeywordMatchType ' +
    'FROM CAMPAIGN_NEGATIVE_KEYWORDS_PERFORMANCE_REPORT ' +
    'WHERE CampaignStatus = "ENABLED" ' +
    '      ' + campaignCondition;
  var report = AdsApp.report(query, REPORTING_OPTIONS);

  var rows = report.rows();
  while (rows.hasNext()) {
    var row = rows.next();

    var campaignId = row['CampaignId'];
    var keywordText = row['Criteria'];
    var keywordMatchType = row['KeywordMatchType'];

    if (cache[campaignId]) {
      cache[campaignId].negatives
        .push(normalizeKeyword(keywordText, keywordMatchType));
    }
  }

  Logger.log('Populating cache with negative keyword lists');
  var negativeKeywordLists =
    AdsApp.negativeKeywordLists().withCondition('Status = ACTIVE').get();

  while (negativeKeywordLists.hasNext()) {
    var negativeKeywordList = negativeKeywordLists.next();

    var negativeList = {name: negativeKeywordList.getName(), negatives: []};
    var negativeKeywords = negativeKeywordList.negativeKeywords().get();

    while (negativeKeywords.hasNext()) {
      var negative = negativeKeywords.next();
      negativeList.negatives.push(
          normalizeKeyword(negative.getText(), negative.getMatchType()));
    }

    var campaigns = negativeKeywordList.campaigns()
        .withCondition('Status = ENABLED').get();

    while (campaigns.hasNext()) {
      var campaign = campaigns.next();
      var campaignId = campaign.getId();

      if (cache[campaignId]) {
        cache[campaignId].negativesFromLists =
            cache[campaignId].negativesFromLists.concat(negativeList);
      }
    }
  }

  Logger.log('Finding negative conflicts');
  var conflicts = [];

  // Adds context about the conflict.
  var enrichConflict = function(
      conflict, campaignId, adGroupId, level, opt_listName) {
    conflict.campaignId = campaignId;
    conflict.adGroupId = adGroupId;
    conflict.campaignName = cache[campaignId].campaignName;
    conflict.adGroupName = cache[campaignId].adGroups[adGroupId].adGroupName;
    conflict.level = level;
    conflict.listName = opt_listName || '-';
  };

  for (var campaignId in cache) {
    for (var adGroupId in cache[campaignId].adGroups) {
      var positives = cache[campaignId].adGroups[adGroupId].positives;

      var negativeLevels = {
        'Campaign': cache[campaignId].negatives,
        'Ad Group': cache[campaignId].adGroups[adGroupId].negatives
      };

      for (var level in negativeLevels) {
        var newConflicts =
          checkForConflicts(negativeLevels[level], positives);

        for (var i = 0; i < newConflicts.length; i++) {
          enrichConflict(newConflicts[i], campaignId, adGroupId, level);
        }
        conflicts = conflicts.concat(newConflicts);
      }

      var negativeLists = cache[campaignId].negativesFromLists;
      var level = 'Negative list';
      for (var k = 0; k < negativeLists.length; k++) {
        var negativeList = negativeLists[k];
        var newConflicts = checkForConflicts(negativeList.negatives, positives);

        for (var j = 0; j < newConflicts.length; j++) {
          enrichConflict(
              newConflicts[j], campaignId, adGroupId, level, negativeList.name);
        }
        conflicts = conflicts.concat(newConflicts);
      }
    }
  }

  return conflicts;
}

/**
 * Saves conflicts to a spreadsheet if present.
 *
 * @param {Object} spreadsheet The spreadsheet object.
 * @param {string} customerId The account the conflicts are for.
 * @param {Array.<Object>} conflicts A list of conflicts.
 * @return {boolean} True if there were conflicts and false otherwise.
 */
function outputConflicts(spreadsheet, customerId, conflicts) {
  if (conflicts.length > 0) {
    saveConflictsToSpreadsheet(spreadsheet, customerId, conflicts);
    Logger.log('Conflicts were found for ' + customerId +
               '. See ' + spreadsheet.getUrl());
    return true;
  } else {
    Logger.log('No conflicts were found for ' + customerId + '.');
    return false;
  }
}

/**
 * Sets up the spreadsheet to receive output.
 *
 * @param {Object} spreadsheet The spreadsheet object.
 */
function initializeSpreadsheet(spreadsheet) {
  // Make sure the spreadsheet is using the account's timezone.
  spreadsheet.setSpreadsheetTimeZone(AdsApp.currentAccount().getTimeZone());

  // Clear the last run date on the spreadsheet.
  spreadsheet.getRangeByName('RunDate').clearContent();

  // Clear all rows in the spreadsheet below the header row.
  var outputRange = spreadsheet.getRangeByName('Headers')
    .offset(1, 0, spreadsheet.getSheetByName('Conflicts')
        .getDataRange().getLastRow())
    .clearContent();
}

/**
 * Saves conflicts for a particular account to the spreadsheet starting at the
 * first unused row.
 *
 * @param {Object} spreadsheet The spreadsheet object.
 * @param {string} customerId The account that the conflicts are for.
 * @param {Array.<Object>} conflicts A list of conflicts.
 */
function saveConflictsToSpreadsheet(spreadsheet, customerId, conflicts) {
  // Find the first open row on the Report tab below the headers and create a
  // range large enough to hold all of the failures, one per row.
  var lastRow = spreadsheet.getSheetByName('Conflicts')
    .getDataRange().getLastRow();
  var headers = spreadsheet.getRangeByName('Headers');
  var outputRange = headers
    .offset(lastRow - headers.getRow() + 1, 0, conflicts.length);

  // Build each row of output values in the order of the columns.
  var outputValues = [];
  for (var i = 0; i < conflicts.length; i++) {
    var conflict = conflicts[i];
    outputValues.push([
      customerId,
      conflict.negative,
      conflict.level,
      conflict.positives.join(', '),
      conflict.campaignName,
      conflict.adGroupName,
      conflict.listName
    ]);
  }
  outputRange.setValues(outputValues);

  spreadsheet.getRangeByName('RunDate').setValue(new Date());

  for (var i = 0; i < CONFIG.RECIPIENT_EMAILS.length; i++) {
    spreadsheet.addEditor(CONFIG.RECIPIENT_EMAILS[i]);
  }
}

/**
 * Sends an email to a list of email addresses with a link to the spreadsheet.
 *
 * @param {Object} spreadsheet The spreadsheet object.
 */
function sendEmail(spreadsheet) {
  MailApp.sendEmail(CONFIG.RECIPIENT_EMAILS.join(','),
      'Negative Keyword Conflicts Found',
      'Negative keyword conflicts were found in your ' +
      'Google Ads account(s). See ' +
      spreadsheet.getUrl() + ' for details. You may wish ' +
      'to delete the negative keywords causing the ' +
      'the conflicts.');
}

/**
 * Retrieves the campaign IDs of a campaign iterator.
 *
 * @param {Object} campaigns A CampaignIterator object.
 * @return {Array.<Integer>} An array of campaign IDs.
 */
function getCampaignIds(campaigns) {
  var campaignIds = [];
  while (campaigns.hasNext()) {
    campaignIds.push(campaigns.next().getId());
  }

  return campaignIds;
}

/**
 * Retrieves all campaign IDs in an account.
 *
 * @return {Array.<Integer>} An array of campaign IDs.
 */
function getAllCampaignIds() {
  return getCampaignIds(AdsApp.campaigns().get());
}

/**
 * Retrieves the campaign IDs with a given label.
 *
 * @param {string} labelText The text of the label.
 * @return {Array.<Integer>} An array of campaign IDs, or null if the
 *     label was not found.
 */
function getCampaignIdsWithLabel(labelText) {
  var labels = AdsApp.labels()
    .withCondition('Name = "' + labelText + '"')
    .get();

  if (!labels.hasNext()) {
    return null;
  }
  var label = labels.next();

  return getCampaignIds(label.campaigns().get());
}

/**
 * Compares a set of negative keywords and positive keywords to identify
 * conflicts where a negative keyword blocks a positive keyword.
 *
 * @param {Array.<Object>} negatives A list of objects with fields
 *     display, raw, and matchType.
 * @param {Array.<Object>} positives A list of objects with fields
 *     display, raw, and matchType.
 * @return {Array.<Object>} An array of conflicts, each an object with
 *     the negative keyword display text causing the conflict and an array
 *     of blocked positive keyword display texts.
 */
function checkForConflicts(negatives, positives) {
  var conflicts = [];

  for (var i = 0; i < negatives.length; i++) {
    var negative = negatives[i];
    var anyBlock = false;
    var blockedPositives = [];

    for (var j = 0; j < positives.length; j++) {
      var positive = positives[j];

      if (negativeBlocksPositive(negative, positive)) {
        anyBlock = true;
        blockedPositives.push(positive.display);
      }
    }

    if (anyBlock) {
      conflicts.push({
        negative: negative.display,
        positives: blockedPositives
      });
    }
  }

  return conflicts;
}

/**
 * Removes leading and trailing match type punctuation from the first and
 * last character of a keyword's text, if any.
 *
 * @param {string} text A keyword's text to remove punctuation from.
 * @param {string} open The character that may be the first character.
 * @param {string} close The character that may be the last character.
 * @return {Object} The same text, trimmed of open and close if present.
 */
function trimKeyword(text, open, close) {
  if (text.substring(0, 1) == open &&
      text.substring(text.length - 1) == close) {
    return text.substring(1, text.length - 1);
  }

  return text;
}

/**
 * Normalizes a keyword by returning a raw and display version and consistent
 * match type. The raw version has no leading and trailing punctuation for
 * phrase and exact match keywords, no consecutive whitespace, is all
 * lowercase, and removes broad match qualifiers. The display version has no
 * consecutive whitespace and is all lowercase. The match type is uppercase.
 *
 * @param {string} text A keyword's text that should be normalized.
 * @param {string} matchType The keyword's match type.
 * @return {Object} An object with fields display, raw, and matchType.
 */
function normalizeKeyword(text, matchType) {
  var display;
  var raw = text;
  matchType = matchType.toUpperCase();

  // Replace leading and trailing "" for phrase match keywords and [] for
  // exact match keywords, if it is there.
  if (matchType == 'PHRASE') {
    raw = trimKeyword(raw, '"', '"');
  } else if (matchType == 'EXACT') {
    raw = trimKeyword(raw, '[', ']');
  }

  // Collapse any runs of whitespace into single spaces.
  raw = raw.replace(new RegExp('\\s+', 'g'), ' ');

  // Keywords are not case sensitive.

Source: https://developers.google.com/google-ads/scripts/docs/solutions/adsmanagerapp-negative-keyword-conflicts

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