Release – MAB Version 4.0.0

Release date: 28 January 2026
Status: Live in production
Audience: All MyAdbooker users

TL;DR (highlights)

• Deals API enhancement — new PublisherID field added to identify the organization where a deal was created
   
• Line Item Cost Calculator update — default Frequency (SOT) and Playouts per hour aligned with BRO market standards
   
• Frontend stability & performance improvements through internal platform framework upgrades
   
• Multiple bug fixes across reporting, deals, sites, SSP, and auction handling
   
• No downtime and no client action required
  
   

1) What’s New

Deals API – PublisherID

Where: Deals API
Note: Not all DSPs have subscribed to the deals API. 
 

What changed:

• A new field, PublisherID, has been added to the Deals API responses
• PublisherID represents the Organization ID where the deal was created
   

Available in list of the deals or single deal lookup.
 

Why it matters:

• Enables DSPs to clearly identify the originating publisher organization
• Improves transparency and reliability of deal integrations
  
   

2) Improvements

Frontend Stability & Performance

What changed:

• Internal platform framework upgrades
   

Why it matters:

• Improves overall application stability and performance
• Aligned with latest security standards and modern web practices

Line Item Cost Calculator – Updated Defaults

Where: Line Item Cost Calculation Input

What changed:
The default (prepopulated) values have been updated to align with BRO market standards:

• Frequency (SOT): 12.5% → 16.7%
• Playouts per hour: 45 → 60
   

Behavior:

• Defaults apply only when creating a new Line Item Cost Calculation Input
• Values remain editable by the user
• Existing calculations, deals, and line items remain unchanged
  
   

Why it matters:

• Improves accuracy of campaign budget estimates
• Aligns buyer expectations with BRO-defined delivery baselines
• Reduces the risk of underestimated PMP budgets
   

3) Bug Fixes

Line Item Cost Calculator – Frequency Validation

Issue:

• Users could enter playouts per hour values that resulted in frequency exceeding 100%, which is invalid

Fix:

• Validation has been added to prevent frequency values above 100%
  
   

Reporting – Player Reporting Widget Responsiveness

Issue:

• On smaller screen sizes, some columns disappeared from the Player Reporting widget
   

Fix:

• The widget now adapts correctly to screen size, ensuring all columns remain accessible
   

Deals – Trigger Dropdown White Screen

Issue:

• A white screen appeared when typing in the “Trade name” dropdown or selecting operators (Equals, Greater than, Less than)

Fix:

• Users can now type and search within dropdowns without the application crashing
  
   

Sites – Latitude & Longitude Auto-Fill

Issue:

• Latitude and longitude fields were not automatically populated when entering an address
   

Fix:

• Coordinates are now automatically filled once an address is provided
   

SSP – Security Upgrade

Fix:

• Additional security enhancements have been deployed to improve platform safety

Floating CPM Deals – Auction Type

Issue:

• Floating CPM deals were sent with an improper OpenRTB auction type (at = 4)
   

Fix:

• Floating CPM deals are now correctly sent as First Price auctions (at = 1), in compliance with OpenRTB specifications
  
   

4) Impact & Risk Statement

• No downtime occurred during deployment
• No client action is required
• Existing deals, calculations, and integrations remain unaffected
  
   

5) FAQs

Q: Do I need to take any action for this release?
A: No. This release does not require any client action.

Q: Was there any downtime during deployment?
A: No. Version 4.0.0 was deployed without downtime.

Q: What is the new PublisherID field in the Deals API?
A: PublisherID represents the Organization ID where the deal was created and helps identify the originating publisher.

Q: Will the new PublisherID field affect existing Deals API integrations?
A: No. The field is additive and fully backward-compatible.

Q: Why were the default values in the Line Item Cost Calculator updated?
A: The defaults were updated to align with current BRO market standards and improve budget planning accuracy.

Q: Can I still change Frequency (SOT) and Playouts per hour manually?
A: Yes. The updated values are defaults only and remain fully editable.

Q: Do the new defaults affect existing deals or line items?
A: No. Existing calculations, deals, and line items remain unchanged.

Q: What changed for Floating CPM deals?
A: Floating CPM deals are now sent as First Price auctions (at = 1), in compliance with OpenRTB requirements.