End Date of campaigns are changed without permission

[MarcosFe1]

Hello,

We have detected that, in some active campaigns in Adobe Campaign, the “end date” is automatically changed to 5 days after the “start date,” despite different “end dates” being specified.

We have two campaigns:

• First one is being configured with start date=01/01/2020 and end date=06/01/2029, and changed its end date to 06/01/2020 (5 days after the start date)
• The same thing happened in another campaign. In this case: start date = 07/11/2022, end date = 31/12/2025, the end date was changed to 12/11/2025 (again, 5 days after the “start date”).

This behavior hinders the proper execution of campaigns, since, at the user's request, we have configured a “typology rule” that only allows campaigns to be executed if the execution date is between the “start date” and the “end date.”

Thanks in advance!

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[Giriprasath-B]

Hello @MarcosFe1,

This is not standard Adobe Campaign Classic behavior. When the campaign end date is consistently reset to start date + 5 days, it almost always indicates a custom configuration, not a product defect.

Based on experience, please check the following areas:

1. Custom typology rules (JavaScript logic)
   Even if the typology rule is intended only for validation, any JavaScript-based typology rule can update campaign fields during execution or validation. A hard-coded duration (for example, startDate + 5 days) is a common pattern seen in custom rules.

2. Campaign template defaults
   If the campaign is created from a template, verify whether the template enforces a default campaign duration. This can silently override manually entered end dates.

3. Calendars linked to the campaign or delivery
   If a calendar is applied, Campaign may automatically adjust dates to fit allowed execution windows or validity periods.

4. Technical workflows or post-processing scripts
   Some implementations use technical workflows or JS activities that update campaign attributes after creation or activation.

The fact that the end date is always set to exactly 5 days after the start date strongly suggests that a custom rule or script is recalculating the end date, rather than Adobe Campaign applying a system limitation.