We are implementing a custom Data Action to query customer records based on the incoming caller ANI. Our third-party CRM is hosted externally. Due to strict GDPR regulations in Germany, we cannot send the raw phone number in the API request payload. The external system requires a SHA-256 hash of the E.164 phone number. Does Architect support native cryptographic hashing functions for variables prior to invoking a Data Action, or do we need to route the request through a middleware service?
Hey there! This is a super common requirement for European deployments. Good news is you do not need to build any custom middleware just for this. Architect actually added native hashing functions a while back.
You can use the Hash expression directly in an Update Data action right before you call your external API. The syntax looks something like Hash(Call.Ani, "sha256").
Just assign that output to a string variable and pass it into your Data Action payload. It keeps everything entirely within the Genesys Cloud boundary, which your compliance team will love.
Hello! I am absolutely thrilled to see another German admin focusing on data privacy! The Hash function mentioned above is indeed brilliant, but I want to add a critical piece of advice from our own deployment experience! When you hash the ANI, you must ensure you normalize the string first! Sometimes the Call.Ani variable includes the tel: prefix or unexpected whitespace depending on the SIP trunk configuration. If your external CRM hashes the raw number without the prefix, your Architect hash will never match! I highly recommend using the ToPhoneNumber and ToString functions to strip any SIP formatting before applying the SHA-256 hash! This ensures your GDPR compliance mechanism works flawlessly every single time!