Merchant API code sample to update a omnichannel setting.

### Java

    // Copyright 2025 Google LLC

    // 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
    //
    //     https://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.

    package shopping.merchant.samples.accounts.omnichannelsettings.v1;

    import com.google.api.gax.core.FixedCredentialsProvider;
    import com.google.auth.oauth2.GoogleCredentials;
    import com.google.protobuf.FieldMask;
    import com.google.shopping.merchant.accounts.v1.InventoryVerification;
    import com.google.shopping.merchant.accounts.v1.OmnichannelSetting;
    import com.google.shopping.merchant.accounts.v1.OmnichannelSettingName;
    import com.google.shopping.merchant.accounts.v1.OmnichannelSettingsServiceClient;
    import com.google.shopping.merchant.accounts.v1.OmnichannelSettingsServiceSettings;
    import com.google.shopping.merchant.accounts.v1.UpdateOmnichannelSettingRequest;
    import shopping.merchant.samples.utils.Authenticator;
    import shopping.merchant.samples.utils.Config;

    /**
     * This class demonstrates how to update an omnichannel setting for a given Merchant Center account
     * in a given country
     */
    public class UpdateOmnichannelSettingSample {

      public static void updateOmnichannelSettings(
          Config config, String regionCode, String contact, String email) throws Exception {

        // Obtains OAuth token based on the user's configuration.
        GoogleCredentials credential = new Authenticator().authenticate();

        // Creates service settings using the credentials retrieved above.
        OmnichannelSettingsServiceSettings omnichannelSettingsServiceSettings =
            OmnichannelSettingsServiceSettings.newBuilder()
                .setCredentialsProvider(FixedCredentialsProvider.create(credential))
                .build();

        // Calls the API and catches and prints any network failures/errors.
        try (OmnichannelSettingsServiceClient omnichannelSettingsServiceClient =
            OmnichannelSettingsServiceClient.create(omnichannelSettingsServiceSettings)) {
          String accountId = config.getAccountId().toString();
          String name =
              OmnichannelSettingName.newBuilder()
                  .setAccount(accountId)
                  .setOmnichannelSetting(regionCode)
                  .build()
                  .toString();

          OmnichannelSetting omnichannelSetting =
              OmnichannelSetting.newBuilder()
                  .setName(name)
                  .setInventoryVerification(
                      InventoryVerification.newBuilder()
                          .setContact(contact)
                          .setContactEmail(email)
                          .build())
                  .build();
          FieldMask fieldMask = FieldMask.newBuilder().addPaths("inventory_verification").build();
          UpdateOmnichannelSettingRequest request =
              UpdateOmnichannelSettingRequest.newBuilder()
                  .setOmnichannelSetting(omnichannelSetting)
                  .setUpdateMask(fieldMask)
                  .build();

          System.out.println("Sending update omnichannel setting request:");
          OmnichannelSetting response =
              omnichannelSettingsServiceClient.updateOmnichannelSetting(request);

          System.out.println("Updated Omnichannel Setting below:");
          System.out.println(response);
        } catch (Exception e) {
          System.out.println("An error has occured: ");
          System.out.println(e);
        }
      }

      public static void main(String[] args) throws Exception {
        Config config = Config.load();

        // The country which you're targeting at.
        String regionCode = "{REGION_CODE}";
        // The name of the inventory verification contact you want to update.
        String contact = "{NAME}";
        // The address of the inventory verification email you want to update.
        String email = "{EMAIL}";

        updateOmnichannelSettings(config, regionCode, contact, email);
      }
    }

### PHP

    <?php
    /**
     * Copyright 2025 Google LLC
     *
     * 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
     *
     *     https://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.
     */
    require_once __DIR__ . '/../../../../vendor/autoload.php';
    require_once __DIR__ . '/../../../Authentication/Authentication.php';
    require_once __DIR__ . '/../../../Authentication/Config.php';
    use Google\ApiCore\ApiException;
    use Google\Protobuf\FieldMask;
    use Google\Shopping\Merchant\Accounts\V1\Client\OmnichannelSettingsServiceClient;
    use Google\Shopping\Merchant\Accounts\V1\InventoryVerification;
    use Google\Shopping\Merchant\Accounts\V1\OmnichannelSetting;
    use Google\Shopping\Merchant\Accounts\V1\UpdateOmnichannelSettingRequest;

    /**
     * This class demonstrates how to update an omnichannel setting for a given
     * Merchant Center account in a given country.
     */
    class UpdateOmnichannelSetting
    {
        /**
         * Helper to create the name string.
         *
         * @param string $accountId The merchant account ID.
         * @param string $regionCode The region code of the setting.
         * @return string The name string in the format
         *     `accounts/{account}/omnichannelSettings/{omnichannelSetting}`.
         */
        private static function getName(string $accountId, string $regionCode): string
        {
            return sprintf('accounts/%s/omnichannelSettings/%s', $accountId, $regionCode);
        }

        /**
         * Updates an omnichannel setting for a given Merchant Center account.
         *
         * @param array $config The configuration file for authentication.
         * @param string $regionCode The country of the omnichannel setting.
         * @param string $contact The name of the inventory verification contact.
         * @param string $email The email of the inventory verification contact.
         */
        public static function updateOmnichannelSettingSample(
            array $config,
            string $regionCode,
            string $contact,
            string $email
        ): void {
            // Obtains OAuth credentials from the configuration file.
            $credentials = Authentication::useServiceAccountOrTokenFile();

            // Creates a client.
            $omnichannelSettingsServiceClient = new OmnichannelSettingsServiceClient([
                'credentials' => $credentials
            ]);

            // Constructs the resource name.
            $name = self::getName($config['accountId'], $regionCode);

            // Creates the omnichannel setting with the updated fields.
            $omnichannelSetting = new OmnichannelSetting([
                'name' => $name,
                'inventory_verification' => new InventoryVerification([
                    'contact' => $contact,
                    'contact_email' => $email
                ])
            ]);

            // Creates the field mask to specify which fields to update.
            $fieldMask = new FieldMask([
                'paths' => ['inventory_verification']
            ]);

            // Creates the request.
            $request = new UpdateOmnichannelSettingRequest([
                'omnichannel_setting' => $omnichannelSetting,
                'update_mask' => $fieldMask
            ]);

            // Calls the API and prints the response.
            try {
                printf("Sending update omnichannel setting request:%s", PHP_EOL);
                $response = $omnichannelSettingsServiceClient->updateOmnichannelSetting($request);
                printf("Updated Omnichannel Setting below:%s", PHP_EOL);
                print $response->serializeToJsonString(true) . PHP_EOL;
            } catch (ApiException $e) {
                printf("An error has occured: %s", $e->getMessage());
            }
        }

        /**
         * Executes the sample.
         */
        public function callSample(): void
        {
            $config = Config::generateConfig();
            // The country which you're targeting.
            $regionCode = '{REGION_CODE}';
            // The name of the inventory verification contact you want to update.
            $contact = '{NAME}';
            // The address of the inventory verification email you want to update.
            $email = '{EMAIL}';
            self::updateOmnichannelSettingSample($config, $regionCode, $contact, $email);
        }
    }

    // Runs the script.
    $sample = new UpdateOmnichannelSetting();
    $sample->callSample();

### Python

    # -*- coding: utf-8 -*-
    # Copyright 2025 Google LLC
    #
    # 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.
    """This class demonstrates how to update an omnichannel setting."""

    from examples.authentication import configuration
    from examples.authentication import generate_user_credentials
    from google.protobuf import field_mask_pb2
    from google.shopping.merchant_accounts_v1 import InventoryVerification
    from google.shopping.merchant_accounts_v1 import OmnichannelSetting
    from google.shopping.merchant_accounts_v1 import OmnichannelSettingsServiceClient
    from google.shopping.merchant_accounts_v1 import (
        UpdateOmnichannelSettingRequest,
    )


    def update_omnichannel_setting(
        account_id: str, region_code: str, contact: str, email: str
    ) -> None:
      """Updates an omnichannel setting for a given Merchant Center account.

      Args:
          account_id: The ID of the Merchant Center account.
          region_code: The country for which you're updating the setting.
          contact: The name of the inventory verification contact.
          email: The email of the inventory verification contact.
      """
      # Gets OAuth Credentials.
      credentials = generate_user_credentials.main()

      # Creates a client.
      client = OmnichannelSettingsServiceClient(credentials=credentials)

      # The name of the omnichannel setting to update.
      name = f"accounts/{account_id}/omnichannelSettings/{region_code}"

      # Creates an omnichannel setting with the updated values.
      omnichannel_setting = OmnichannelSetting()
      omnichannel_setting.name = name
      omnichannel_setting.inventory_verification = InventoryVerification(
          contact=contact, contact_email=email
      )

      # Creates a field mask to specify which fields to update.
      field_mask = field_mask_pb2.FieldMask(paths=["inventory_verification"])

      # Creates the request.
      request = UpdateOmnichannelSettingRequest(
          omnichannel_setting=omnichannel_setting, update_mask=field_mask
      )

      # Makes the request and catches and prints any error messages.
      try:
        print("Sending update omnichannel setting request:")
        response = client.update_omnichannel_setting(request=request)
        print("Updated Omnichannel Setting below:")
        print(response)
      except RuntimeError as e:
        print("An error has occured: ")
        print(e)


    if __name__ == "__main__":
      # The ID of the account to get the omnichannel settings for.
      _ACCOUNT = configuration.Configuration().read_merchant_info()

      # The country which you're targeting.
      _REGION_CODE = "{REGION_CODE}"
      # The name of the inventory verification contact you want to update.
      _CONTACT = "{NAME}"
      # The address of the inventory verification email you want to update.
      _EMAIL = "{EMAIL}"

      update_omnichannel_setting(_ACCOUNT, _REGION_CODE, _CONTACT, _EMAIL)