ServiceNow ES256 Encryption/Authentication issue for custom ABM integration

jaredscharf
Tera Contributor

‎11-17-2025 12:36 PM

We are trying to integrate ServiceNow with ABM (Apple Business Manager) via a custom integration. We are facing issues with setting up authentication due to ServiceNow not supporting ES256 encryption algorithm needed to generate client assertion for JWT token. Does anyone have experience integrating ServiceNow with ABM? Does anyone have experience using ES256 for encryption algorithm in ServiceNow?

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Alex Rose
Kilo Sage

‎01-13-2026 10:46 AM

I used the method in the following post to generate the client assertion:

 

https://www.servicenow.com/community/developer-articles/generate-and-validate-jwt-authorization-toke...

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Kedarisetti Sre
Tera Contributor

2 weeks ago

Currently we are also doing an integration with ABM and I was successfully able to generate a JWT token using Python and MID server. It took some time for me to get started but it was a good experience to work on it.

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