Traits and limitations



API rate

  • The rate limit of using the OneLink API to create, edit, or delete OneLink links is 7.5 million per month (UTC timezone), per account.
  • All requests that are made after exceeding 7.5 million aren't served, and the links aren't created; the API call receives error status code 429 with the message "throttling limit exceeded".
  • Information regarding how much of the rate limit is used/remains is displayed in the OneLink API dashboard.

Link visibility

  • Links created via the API do not appear in the list of OneLink custom links in the AppsFlyer dashboard.
  • Best practice: Save API-created links to a local table, so you can access the links for any future purpose. 


  • The default time to live (TTL) for OneLink short URLs created via OneLink API is 31 days. It's extended by 31 days each time the link is clicked. Clicking on a link once the TTL expires still defaults to the behavior defined in the OneLink base configuration, but the attribution will not work.
  • Maximum TTL is 31 days. Any TTL value larger than 31 is overridden with the default TTL of 31.
  • You can change the default TTL by adding the parameter ttl={value} and specifying how many days, hours, or minutes. For example ttl=7d, ttl=12h, or ttl=10m.
  • You can send an update request to specify the TTL. Any update request resets the TTL (for existing links) to the one specified in the request body.
    • This means the TTL is replaced. For example, if you make an update call with TTL 2d for a link that currently has TTL 29d, it will change to TTL=2d (not 31d).
    • An update call can potentially extend the life of the attribution link. For example, if you make an update call with TTL 31d for a link that currently has TTL 20d but 5 days have passed, the TTL will be 31d from the time of the update.
  • If you don't want link TTLs to automatically extend, add the parameter renew_ttl=false to your links. The value for this parameter is boolean, either true (default) or false.
  • The parameter renew_ttl doesn't display on the actual URL.

Special characters

The following characters must be encoded if used for API created links: ;, *, !, @, #, ?, $, ^, :, &, ~, `, =, +, ’, >, <, /
If you don't encode these characters, they are replaced with a blank space.


Query string from the payload can't exceed 2,048 characters.


The URL ID (or shortlink ID) can be edited to highlight your campaign offering. For example: The URL ID must not exceed 50 characters and can be a combination of letters and numbers. By default, it is 8 characters.


  • You can only edit the URL ID if the current ID isn't already in use.
  • If the URL ID is already in use, link creation fails and returns an error response (400). You and your developer need to decide and configure what happens in such an event.
  • The failed call still counts toward your monthly API quota.