3774486 - Error 429 - Too Many Requests Error - When Calling OAuth Token API on SAP BTP Cloud Foundry

Symptom

When calling the SAP BTP OAuth token endpoint (https://<your-btp-authentication-endpoint>/oauth/token)

with high request volumes (6,000+ requests within a few minutes), the authentication service occasionally returns a 429 Too Many Requests HTTP error response:

<html><head><title>429 Too Many Requests</title></head><body><center><h1>429 Too Many Requests</h1></center><hr><center>nginx</center></body></html>

This causes the consuming API process to fail intermittently during peak load periods.

Environment

SAP BTP, Cloud Foundry environment

Product

SAP Business Technology Platform all versions

Keywords

429 Too Many Requests, OAuth token, SAP BTP, rate limiting, authentication error, Cloud Foundry, token API, API throttling, HTTP 429, request limit, token endpoint, authentication service, SAP BTP rate limit, API rate limiting, nginx 429, token generation error, high volume requests, API performance , KBA , BC-CP-CF-SEC-IAM , UAA, Authentication, Authorization, Trust Mgmnt , Problem

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