These tables show the different allowedInput.types and corresponding headers you use to Get a change and Update a change.

Pre-Verification

allowedInput[].type	API type	Description	Content-Type header	Accept header
`pre-verification-warnings`	info / GET	Pre-verification warnings can generate for a given change. CPS produces these after it retrieves a certificate from a CA or after a client uploads the certificate. Post-verification Warnings must be acknowledged for the change to continue processing.	N/A	`application/vnd.akamai.cps.warnings.v1+json`
`pre-verification-warnings-ack`	update / POST	You must acknowledge pre-Verification warnings by submitting an acknowledgement.	`application/vnd.akamai.cps.acknowledgement.v1+json`	`application/vnd.akamai.cps.change-id.v1+json`

Post-Verification

allowedInput[].type	API type	Description	Content-Type header	Accept header
`post-verification-warnings`	info / GET	Post-verification warnings generated for a given change. Produced after CPS retrieves a certificate from a CA or when a client uploads a certificate. You must acknowledge post-verification warnings for the change to continue processing.	N/A	`application/vnd.akamai.cps.warnings.v1+json`
`post-verification-warnings-ack`	update / POST	You must acknowledge post-verification warnings by submitting an acknowledgement.	`application/vnd.akamai.cps.acknowledgement.v1+json`	`application/vnd.akamai.cps.change-id.v1+json`