Journeys JSON : You have exceeded the maximum number of 1048576 characters in this field.

(1) Share

Report

Posted on by EP-07031525-0

I am trying to build a quite content heavy journey based 12 different email splits, with multiple dynamic content blocks in each of the 12 email variations. I did something pretty similar and worked and now I am getting Error:

Journey JSON : You have exceeded the maximum number of 1048576 characters in this field.

Any assistance on why this is happening and how to sort it out. I can't create different journeys for each emails as the entrance criteria is trigger based.

Thanks

Categories:

Dynamics 365 Customer Insights - Journeys

Microsoft Dynamics CRM

I have the same question (0)

All responses (1)

Answers (0)

Suggested answer

Saif Ali Sabri 2,346 Super User 2025 Season 2 on at

Like (0)

Report
Journeys JSON : You have exceeded the maximum number of 1048576 characters in this field.

The error "Journey JSON: You have exceeded the maximum number of 1,048,576 characters in this field" occurs because the journey's JSON structure exceeds the allowed limit in Dynamics 365 Customer Insights - Journeys (formerly Real-Time Marketing).

1. Reduce Dynamic Content Complexity

Optimize dynamic content in emails:

Minimize nested conditions and remove unnecessary personalization tokens.

Use reusable content blocks instead of embedding dynamic content in each email.

2. Split the Journey into Multiple Sub-Journeys

Instead of separate journeys, create child journeys triggered by the main journey.

Use a custom event or Power Automate to trigger these sub-journeys.

3. Optimize Segmentation & Conditions

Simplify conditions and audience splits.

Pre-segment audiences outside the journey using segments instead of complex in-journey conditions.

4. Minimize JSON Size by Reducing Steps

Reduce unnecessary branches, wait times, and conditions.

Use default content instead of dynamically inserting large variations.

Was this reply helpful? Yes No