Record a CRS tax-residency self-certification (customer servicing staff, idempotency key); each residency TIN is sealed to the customer record and never stored in the clear; disabled unless CRS_ENABLED (not a U.S. obligation)
POST
/customers/{id}/crs-self-certPath parameters
idstringRequiredHeaders
Idempotency-KeystringOptionalSend on every write that creates or changes money or state; a replay with the same key returns the original result with 200.
Returns
200 OK
Errors
Every error is a problem document with a stable code. See Errors.
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