# API - Days Until Progress Parameter?

**URL:** <https://forum.beeminder.com/t/api-days-until-progress-parameter/10207>\
**Category:** Tech\
**Created:** [March 3, 2022, 6:16pm UTC](https://forum.beeminder.com/t/api-days-until-progress-parameter/10207 "2022-03-03T18:16:33Z")\
**Posts on this page:** 1\
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**Author:** ![zzq](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.beeminder.com/zzq/32/6471_2.png) [@zzq](https://forum.beeminder.com/u/zzq)\
**Post date:** [March 3, 2022, 7:01pm UTC](https://forum.beeminder.com/t/api-days-until-progress-parameter/10207/2 "2022-03-03T19:01:59Z")

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I believe that parameter is called `buffer_days`, though I don’t see it documented in the API docs. Nevertheless, I’m pretty sure you can pass it as a parameter to the goal creation API (but perhaps it being undocumented is meant as a hint not to use it, for some reason, not just an accidental omission? Not sure.)

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