# Missing cashier python api example shows alert from beginning to end of video

**URL:** <https://forum.aotu.ai/t/missing-cashier-python-api-example-shows-alert-from-beginning-to-end-of-video/370>\
**Category:** Questions\
**Created:** [November 14, 2023, 3:43am UTC](https://forum.aotu.ai/t/missing-cashier-python-api-example-shows-alert-from-beginning-to-end-of-video/370 "2023-11-14T03:43:12Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![caixuncnv](https://avatars.discourse-cdn.com/v4/letter/c/46a35a/32.png) [@caixuncnv](https://forum.aotu.ai/u/caixuncnv)\
**Post date:** [November 14, 2023, 3:43am UTC](https://forum.aotu.ai/t/missing-cashier-python-api-example-shows-alert-from-beginning-to-end-of-video/370/1 "2023-11-14T03:43:12Z")

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Hi, I am trying the python api example with the missing cashier video. I am able to run the code successfully but the alert starts from around 1 sec of the video to the end. I opened the client and i can see zone is set and person is detected inside the zone. but somehow it still shows alert of missing cashier. I am using [Detector Person Overhead Openvino](https://aotu.ai/releases/brainframe/v0.29.6.1/detector_person_overhead_openvino.cap) and also tried other capsules but seems not helping.

 ![missingCashier](https://us1.discourse-cdn.com/flex019/uploads/aotu/original/1X/bd0e8fc50c72a7bb11e2060101ac55902bb23aaa.jpeg)

any comments are welcome.

many thanks.  
Kelvin

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**Author:** ![Chris](https://avatars.discourse-cdn.com/v4/letter/c/958977/32.png) [@Chris](https://forum.aotu.ai/u/Chris)\
**Post date:** [November 20, 2023, 1:49am UTC](https://forum.aotu.ai/t/missing-cashier-python-api-example-shows-alert-from-beginning-to-end-of-video/370/2 "2023-11-20T01:49:05Z")

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Please expand the alert region to cover the detect block.