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Exceeding 60 MB on the HTTP POST body size of a Target content delivery request results in a response error code HTTP 413 Request Entity Too Large.

Limit: 50 calls per minute for the Admin, Reporting, and bulk profile update APIs. This limit does not apply to the Delivery and single profile update APIs.

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If a customer exceeds 100 concurrent Target content delivery requests for a given user session, all subsequent requests for that user session are blocked. Two or more requests are considered to be concurrent if they are all sent to the Target server before the response is received for any of them. Target processes concurrent requests for the same session sequentially.

Character limits and other limits (offer size, audiences, profiles, values, parameters, etc.) that affect activities and other elements in Adobe Target.

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Values with more than 256 characters are truncated when using at.js 1.x. You receive an error message when sending values with morethan 256 characters when using at.js 2.x or the Adobe Experience Platform Web SDK. Values are not automatically truncated.

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Exceeding 50 mboxes per Target content delivery batch mbox request results in a response error code HTTP 400 with error message size must be between 0 and 50.

For Delivery API (at.js 2.x), Batch mbox V2, and Adobe Experience Platform Web SDK (alloy.js) integrations, mbox names can contain alphanumeric characters (A-Z, a-z, 0-9) and any of the following characters:

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Batch notification requests are processed sequentially, increasing the overall response time with each iteration. The more notifications on the batch request, the more response latency can be expected, and therefore potential for timeouts. Some additional latency on batch notification requests might be acceptable for some customers, but be aware that timeouts and any subsequent retries could cause even more latency.

For a String return value, if the size of the return value exceeds 2,048 characters, the script is disabled by the system.

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:

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.

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.

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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:

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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).

Batch mbox requests are processed sequentially, increasing the overall response time with each iteration. The more mboxes on the batch request, the more response latency can be expected, and therefore potential for timeouts. If experience rendering is blocked on these high latency batch requests, the latency could result in a degraded user experience as users wait for experiences to render.

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.)

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.

This limit is enforced because the productPurchasedId mbox parameter captures the entity.ids, which limits the character count to 50.

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.

Recommendations for limiting profile script complexity: Profile scripts can execute a limited number of instructions. For more information, see Best practices in Profile attributes.