Screen recording api 403 forbidden during load test

Can’t get this config to load properly… trying to test screen recording api throughput with jmeter 5.4.1. i am using the /api/v2/screenrecordings endpoint to fetch metadata for 50 concurrent sessions. the system returns 403 forbidden error after about 10 successful calls.

the auth token is valid and has the screen_recording:read scope. i checked the admin console and the role has full access. but when i ramp up the threads in jmeter to simulate 50 users, it blocks.

is there a hidden rate limit on this endpoint? the docs dont say anything about throttling for screen recordings. i am getting this error consistently at the same concurrency level.

current setup:

  • jmeter 5.4.1
  • genesys cloud api v2
  • thread group: 50 users, 0 ramp up
  • loop count: 1

the error message just says forbidden, no specific reason in the body. i tried adding a delay of 200ms between requests but it still fails. maybe the websocket connection for the recording itself is interfering? i am running this from usa-east region. any help would be great.

It depends, but generally… this feels like a category error in the workflow. As a WFM scheduler, I don’t touch SIP trunks or messaging payloads, but I see this pattern constantly when integrations fail under load. The issue isn’t necessarily the screen_recording:read scope, which appears correct for individual requests. The 403 after ten successful calls strongly suggests a rate-limiting policy triggered by concurrent session spikes, not a permission denial.

Genesys Cloud APIs often enforce per-tenant or per-tenant-per-endpoint rate limits that are not always explicitly documented in the basic scope tables. When you ramp JMeter to 50 concurrent threads, you are hitting that ceiling hard. The system interprets the burst as a potential DoS or abuse, triggering a hard block rather than a polite 429 Too Many Requests.

Try implementing exponential backoff in your JMeter test plan. Instead of firing 50 requests simultaneously, stagger them. Set a constant throughput timer or use a pacing controller to limit requests to roughly 10-15 per second. This mimics actual human behavior and keeps you under the radar of the rate limiter.

Warning: Do not ignore the 403. It is a hard stop. Continuing to hammer the endpoint will likely get your API key temporarily locked out entirely, requiring an admin reset.

Also, verify if there are any specific WFM-related constraints affecting the user agent string. Sometimes, non-browser user agents (like JMeter’s default) are scrutinized more heavily. Change the User-Agent header in your HTTP Request Defaults to something standard like Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36. This small tweak often bypasses stricter bot-detection filters that might be inadvertently catching your load test.

Focus on smoothing the request flow. The data is there; you just need to ask for it politely.