conversions4

common/proto/ecb.proto

@@ -274,6 +274,11 @@ message EcbConversionEvidence {
   // already_same_currency, since none of those were priced by the policy's
   // source itself -- a human entered them.
   optional string observation_source_id = 29;
+
+  // Exact immutable profile policy version selected for this conversion's
+  // accounting date. Absent only when no conversion policy was needed because
+  // determination_method is already_same_currency.
+  optional int64 rate_source_policy_id = 30;
 }
 
 message ListEcbConversionEvidenceResponse {

common/src/proto/komp_ac.ecb.rs

@@ -295,6 +295,11 @@ pub struct EcbConversionEvidence {
     /// source itself -- a human entered them.
     #[prost(string, optional, tag = "29")]
     pub observation_source_id: ::core::option::Option<::prost::alloc::string::String>,
+    /// Exact immutable profile policy version selected for this conversion's
+    /// accounting date. Absent only when no conversion policy was needed because
+    /// determination_method is already_same_currency.
+    #[prost(int64, optional, tag = "30")]
+    pub rate_source_policy_id: ::core::option::Option<i64>,
 }
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct ListEcbConversionEvidenceResponse {