Update draft-ietf-scitt-scrapi.md

Co-authored-by: A.J. Stein (Unofficial) <[email protected]>

draft-ietf-scitt-scrapi.md

@@ -281,7 +281,7 @@ In cases where the registration request is accepted but the Transparency Service
 
 If the `OperationID` is a valid URL, it MAY be included as a `Location` header in the HTTP response.
 
-Transparency Services MAY clean up old operation records to manage practical implementation concerns.
+Transparency Services do not guarantee retention of operation IDs for a period of time or the entirety of its lifecycle. A Transparency MAY delete operation records and some operation IDs lookups MAY return error XYZ at one time even though they were valid in the past.
 The length of validity of the `OperationID` is Transparency Service specific, but at a minimum, the Transparency Service MUST maintain a record of every running or successful operation until at least one client has fetched the completed Receipt.
 
 The Transparency Service MAY include a `Retry-After` header in the HTTP response to help with polling.