Campaign Release Notes 2026

Optimizely Campaign 11.35 was released on Wednesday, August 5, 2026. In addition to many other improvements and bug fixes, it contains the following changes:

More information about manually uploaded CSV files When CSV files are uploaded for use with field functions, the date, the uploading user, and the file name of the previously uploaded file are now displayed to avoid unnecessary reuploads.

Styling fixes and improvements The menu with the CSA data for the widget spam complaints was positioned incorrectly; The title of the Marketplace page was not displayed in the drop-down menu of the page selector; The input fields in the Import keystore dialog box were not tall enough.

Fixed: Dynamic agent search in the Opal chat window did not work When entering an agent name in the Opal chat window in Campaign, no matching agents were suggested while typing.

Fixed: Opal chat button no longer worked after using the workspace The Opal chat menu disappeared and could not be reopened when a user tried to enter a prompt into a popup menu on the Opal workspace.

Optimizely Campaign 11.34 was released on Wednesday, July 22, 2026. In addition to many other improvements and bug fixes, it contains the following changes:

Styling fixes and improvements The template view of the product data interface was improved; The performance dashboard was adapted to the new Optimizely branding; A component for drop-down menus was adapted to the new Optimizely branding.

Performance improvement for webhooks The speed of webhook processing was improved.

Retain settings when switching product feeds If a different product feed is selected within a product element, the product layout and other options are now retained instead of being reset.

Fixed: Some A/B test campaigns could not reach the sent status When campaigns with an A/B test used a Wait node during sending, they could not be set to sent.

Optimizely Campaign 11.33 was released on Wednesday, July 8, 2026. In addition to many other improvements and bug fixes, it contains the following changes:

Styling fixes and improvements Some display issues related to the rebranding were fixed.

Optimizely Campaign 11.32 was released on Wednesday, June 24, 2026. In addition to many other improvements and bug fixes, it contains the following changes:

Rebranding The Campaign user interface was adapted to the new Optimizely branding.

Fixed: Some A/B test campaigns remained in the activated status Campaigns that use an A/B test node but do not use a winner message draft to contact all remaining potential recipients remained in the activated status, even if they were considered complete by the user.

Fixed: Incorrect media type for WhatsApp campaigns When saving a WhatsApp campaign without selecting a message template, the value Email was displayed in the media type column in the Smart Campaigns overview. Now WhatsApp is displayed there.

Fixed: No processing of SMS replies for some clients The processing of SMS replies did not work for Campaign clients whose SMS sender name contained spaces or special characters.

Optimizely Campaign 11.31 was released on Wednesday, June 10, 2026. In addition to many other improvements and bug fixes, it contains the following changes:

Update for accessibility tests There are new checks and bug fixes for the accessibility test feature.

New warning for incomplete RCS header A new warning is displayed in the campaign overview when the user selects a campaign in which an RCS node lacks a valid sender.

Optimizely Campaign 11.30 was released on Wednesday, May 27, 2026. In addition to many other improvements and bug fixes, it contains the following changes:

Renaming of the old and new email editor nodes The channel tiles in the campaign editor have been renamed to better distinguish the editors: Email is now called Email (old) and Email (new) is now called Email.

Fixed: Editing a deleted ODP synchronization task caused a backend error If two users had the ODP synchronization task grid open at the same time and one deleted an integration, the other user could trigger an error by attempting to edit the entry still visible in their grid. Users now receive a clear message in the user interface that the integration no longer exists.

Fixed: Effects of changing a synchronized row were not displayed correctly When changing a synchronized row, the update row template menu did not always accurately show which campaigns were affected by the row change.

Optimizely Campaign 11.29 was released on Wednesday, May 13, 2026. In addition to many other improvements and bug fixes, it includes the following changes:

More information when a campaign cannot be copied The warning message shown when a campaign with a Design Editor message node cannot be copy to another client now displays the exact problem instead of a list of possible problems.

RCS editor: Error message if the display name cannot be retrieved If the list of display names cannot be retrieved in the RCS editor, the editor now displays an error message instead of an empty drop-down field.

More field functions in JavaScript Additional field functions have been added for JavaScript. Users now have access to the functions barcode (create a URL for a barcode image), odr (process expression), and csv (process data from CSV tables).

Fixed: Subject line generator creates only German subject lines The subject line generator always created German texts. It now generates text in the user's UI language.

Fixed: REST API: Incorrect options for the parameter in the OpenAPI documentation In the OpenAPI documentation, the available values for the mediaType parameter of the REST API endpoint //confirmations were incorrect.

Fixed: REST API: Error when checking recipient validity When checking the validity of a recipient via the //recipients///valid endpoint and specifying an incorrect value for mediaType, the API returned valid even if the recipient was on the blocklist.

Optimizely Campaign 11.28 was released on Wednesday, April 29, 2026. In addition to many other improvements and bug fixes, it includes the following changes:

Fixes and improvements to the user interface The Preview heading in the Import blocklist screen was misaligned; Notifications no longer disappear when the mouse pointer is over them; Improvements to the user interface for small screens.

Better processing of product data from third-party data formats The Design Editor now displays more meaningful field names when product elements are based on a content provider with a third-party data format.

Fixed: Separator elements hidden in the mobile version When adding a separator element in the Design Editor, it was hidden by default in the mobile version.

Fixed: HTML Layout tab is not reset If changes were made to the product layout in a product element and then a different product feed was selected, the changes were discarded, but the title of the HTML Layout tab continued to display a number indicating that changes had been made to the layout.

Optimizely Campaign 11.27 was released on Wednesday, April 15, 2026. In addition to many more improvements and bug fixes, it includes the following changes:

Fixes and improvements to the user interface Fixes to the user interface for Eye-Tracking-Test results; On smaller screens, part of the Template Catalog dialog was cut off.

Fixed: Missing description field in API response The REST API endpoint //recipientlists contains the field description in its response schema, but this field was missing in the actual response.

Optimizely Campaign 11.26 was released on Wednesday, April 1, 2026. In addition to many other improvements and bug fixes, it includes the following changes:

Update of the side panel The side panel (main menu) was redesigned and expanded to include the entry Dashboard.

Fixes and improvements to the user interface The heading of the preview screen in the Design Editor had an incorrect color; Several issues with the user interface for elements of the type Product in the Design Editor were fixed.

Better fallback font for some serif font families The fallback fonts of several font families were changed to keep the appearance of messages more consistent if the intended font cannot be displayed.

accessibility test: More information about the rule PARAGRAPH_SEMANTIC_HTML In accessibility tests, the HTML snippet for the rule PARAGRAPH_SEMANTIC_HTML was expanded to help users find the corresponding paragraph in the user interface.

Upload attachment via drag and drop Attachments can now be added to message drafts via drag and drop in the Add file menu of the Design Editor.

XML format for product feeds The Campaign-specific XML format for product data is now supported as a format for the content of product elements in the Design Editor. For more information about the XML format, see the user documentation.

Optimizely Campaign 11.25 was released on Wednesday, March 18, 2026. In addition to many other improvements and bug fixes, it includes the following changes:

Improved processing of click events Performance when filtering click events with regard to categories was improved.

Function Copy to Clipboard in the profile menu Users can now quickly copy basic information about their account and their Campaign Client via the profile menu. This helps support identify users quickly.

Improved instance selection menu In the global navigation bar, the width of the drop-down list for selecting Campaign instances was increased to avoid truncating names.

Suggestions in the Mark chat The chat in Mark (Optimizely Agent Platform) now offers prompt suggestions, allowing users to quickly select a prompt and optionally edit it directly before sending.

Fixed: Display error for rules in accessibility tests In accessibility tests, the results for the rules PARAGRAPH_SEMANTIC_HTML and TABLE_SEMANTIC_HTML were not displayed correctly.

Fixed: Missing target groups in the REST API response When querying information about a transactional campaign with multiple target groups via the REST endpoint /transactionalmail/ the API response contained only one target group.

Fixed: Incorrect preview image in the push message editor After adding a new image to a push message draft, an incorrect preview image was displayed in the editor.

Optimizely Campaign 11.24 was released on Wednesday, March 4, 2026. In addition to many other improvements and bug fixes, it includes the following changes:

Add attachments via a URL Attachments can be added to message drafts in the Design Editor via a URL. For this purpose, the columns URL and Available were added to the list of attachments.

File download function in Images & Attachments add Users can now download images and other files via the Images & Attachments function.

More information about events in the Customer Journey Campaign-related events in the ODP Customer Journey now receive and capture more details about the event from Campaign.

Date filters for querying Smart Campaigns via the REST API The REST API endpoint for listing Smart Campaigns now supports filtering by date, giving you more control when querying campaigns.

Fixed: Display errors when editing product elements Some display errors when using product lists within product elements have been fixed.

Fixed: API overview showed only a limited number of opt-in processes For customers with many opt-in processes, not all opt-in processes were displayed in the API overview.

Optimizely Campaign 11.23 was released on Wednesday, February 18, 2026. In addition to many other improvements and bug fixes, it includes the following changes:

Images and attachments are saved in the specified folder Under Images and attachments uploaded files are now saved in the currently selected folder and no longer always in the All section.

Opti-ID as the default for new users New Campaign users should preferably be created with an Opti-ID, therefore opti-id is now the default value when creating a new user.

UI fixes and improvements In the drop-down menu Add new icon, two magnifying glass icons were displayed simultaneously. UI improvements in the RCS editor The name of the Campaign client is now visible in the profile menu. The Mark chat window is moved to the background when the profile menu is opened.

Sending RCS messages via the REST API The REST API now supports sending RCS messages.

Better preview for RCS messages The preview for RCS messages has been simplified and now displays the content of the message without additional technical details.

Unsupported WhatsApp templates are displayed Previously, only compatible WhatsApp templates were displayed in Campaign. Now templates with unsupported elements are also displayed, but they are grayed out and cannot be selected.

Fixed: Options for changing the password/PIN were visible for Opti-ID users Campaign users with Opti-ID do not require an option to change their password or PIN in Campaign, so these menu entries are now hidden for them.

Fixed: Incorrect login flow when logging in via Opti-ID When users first logged in to Opti-ID and then opened Campaign, they had to log in again.

Fixed: Products not loaded when switching between broken feed and working feed When editing a product element, switching between a broken feed and a working feed did not work. Users had to completely close and reopen the window and immediately select the correct feed.

Optimizely Campaign 11.22 was released on Wednesday, February 4, 2026. In addition to many other improvements and bug fixes, it includes the following changes:

Mark chat in the Campaign user interface Mark chat is available directly as an overlay in the Campaign user interface.

Better file icons Uploaded files that are not images are now displayed with better icons.

Warning when using SVG in message drafts The Design Editor for emails now displays a warning when the user inserts an SVG image, since this format is not supported by many email clients.

Improvements for product elements in the design editor A new icon indicates when the HTML layout within a product element has been edited. There are now separate views for the HTML layouts for desktop and mobile.

Fixed: Error when sorting attachments by availability When sorting attachments by the Available column, the message “Data could not be loaded” appeared and an error was displayed in the browser console.

Optimizely Campaign 11.21 was released on Wednesday, January 21, 2026. In addition to many other improvements and bug fixes, it includes the following changes:

Accessibility tests for message templates An entry point for accessibility tests has been added to the Design Editor for message templates.

UI fixes and improvements In the accessibility test results, the display of HTML snippets was improved; When deleting an attachment failed, the error message contained HTML code; In the SMS editor, the highlighting of empty input fields was improved; Some issues with the display of the WhatsApp preview were fixed.

Tracking links available via REST API The REST API now supports retrieving and updating tracking links in message drafts created with the Design Editor for emails.

Fixed: Online version is not displayed An issue with displaying online versions of emails has been fixed.

Fixed: Uploading the blocklist fails Uploading a blocklist as a CSV file failed, displaying the message that a CSV import was already running.

Fixed: Unsubscribers deleted from too many lists When users deleted unsubscribers from a recipient list, they were deleted not only from the intended recipient lists, but also from other lists.

Fixed: Incorrect names of downloaded files Some names of files downloaded from Campaign were incorrect when the files contained names of campaigns or message drafts.

Fixed: Improved display of product elements in various email clients Product elements with data from the product data interface were not displayed correctly in Outlook when they used nested tables. In some email clients, product elements with data from the product data interface were not displayed correctly, causing products to be displayed twice.

Optimizely Campaign 11.20 was released on Wednesday, January 7, 2026. In addition to many other improvements and bug fixes, it includes the following changes:

UI bug fixes and improvements A display issue in the drop-down field for selecting message templates has been fixed. Improved visual display of form input errors in the RCS editor. Improved visual display of form input errors in the SMS editor.

JSON message draft available via API The REST API now allows retrieving the JSON code of a message draft from the design editor.

New WhatsApp message editor A new editor for static WhatsApp messages is available.

Saved rows for landing pages The saved rows feature is now available in the Design Editor for landing pages.

Fixed: Preview window not updated On the preview page of the design editor, the Template catalog and Import JSON buttons could be used to change the message draft, but the preview was not updated. The buttons are now hidden on the preview page.

Fixed: Error with Turnstile user groups Errors could occur when creating a new user group for a Turnstile instance.

Fixed: Error in the Batch Sending API When using the Batch Sending API, an error in recipient list processing prevented messages from being sent to recipients.

Fixed: Outdated information about transactional campaigns A cache with information about transactional campaigns was not updated frequently enough, which led to outdated information in the API responses.

Fixed: Layout overrides deleted in product elements Selecting a different product in a product element reset the layout override settings.