Character limits and other limits (offer size, audiences, profiles, values, parameters, etc.) that affect activities and other elements in Adobe Target.
The limits listed below should be considered “hard” limits unless specified as “recommended.”
When the limits designated as “recommended” are approached or exceeded, performance can slow. Slow interface load times can also be caused by a very complex activity, such as many audiences, targets, and experiences all in one activity.
Highly complex activities should be reviewed with Adobe Consulting and tested in a limited environment before being released to production.
Recommended limit: 10,000 active live activities.
Recommended limit: 10,000 active saved (and not ended) activities.
Limit: 50 calls per minute.
If you make more than 50 API calls per minute, Target returns a “503 HTTP status” error message.
Custom entity attributes: 100.
Character Limit: The maximum character length depends on the language.
The maximum length of single-value entity custom attributes is 15,000 characters (for one-byte and two-byte UTF-8 encoded languages such as English and other Latin-script alphabets) or 10,000 characters (for three-byte UTF-8 encoded languages such as Chinese, Japanese, and Korean).
Multi-value entity custom attributes can contain no more than 500 values. Each individual value is limited to 100 characters. The total number of characters across all values must conform to the limitations for the maximum length of single-value entity custom attributes (see above.)
Limit: 5 KB for POST requests. 2,083 characters minus the length of the URL for GET requests.
For GET requests, although the limit on the back end is 5 KB, due to the fact that Microsoft Internet Explorer limits the URL to 2,083 characters, the realistic limit is 2,083 characters minus the current length of the URL.
Limit: 2,000 experiences per Experience Targeting (XT), A/B Test, Multivariate Test (MVT), and Auto-Target activity.
30,000 experiences per Automated Personalization (AP) activity.
Limit: 256 characters.
Values longer than this get truncated.
Limit: The following limits apply to mbox parameters:
For standard mbox calls:
These limits apply unless the request is shortened due to web browser limitations.
If you are using the Batch Delivery API, the limit is 50 mboxes per batch request.
If you are using the Batch Delivery API in the Mobile Services SDK, the limit of 50 mbox parameters, 50 profile parameters, and 50 for other parameter types are limitations of the API itself. It is not possible to send a request containing more that these numbers using the Batch Delivery API. If a request contains more than these limits, the API will return the following error message:
“The number of mboxParameters cannot exceed 50.”
Limits set for endpoints:
Batch mbox v2:
Delivery API endpoint:
Limit: 2,083 characters.
This limit is due to Microsoft Internet Explorer URL length restrictions.
The following size limits apply to offers:
1024 KB for HTML offers.
1024 KB (for each experience) for visual offers from the UI.
1024 KB from the API.
If you are using a global mbox, the limit is for the whole set of content returned for the page. Limiting offer size improves page load times. If the limit is exceeded, the following message appears:
“The content for the experience is too large to deliver. Please modify the experience to affect less page code.”
Recommended limit of active profile scripts (those that are enabled): 300
Recommended limit of total profile scripts per account: 2,000
Recommendations for limiting profile script complexity: Profile scripts can execute a limited number of instructions. For more information, see Best practices in Profile attributes.
Recommended limit: 2,000 characters.
Depends on the size of the encoded string, which could be much longer than the raw string. If the string is too large, it fails before it gets to Adobe Target.
Limit: 2,048 characters.
For performance reasons, we recommend a return value that is no longer than 256 characters.
For a String return value, if the size of the return value exceeds 2,048 characters, the script is disabled by the system.
For an array return value, if the size of the concatenated values of the array exceeds 2,048 characters, the script is disabled by the system.
Recommended limit: 1,000 values.
This refers to the number of line-separated values in the targeting text area. For example, entering 1,000 zip codes into a zip code target.