C1
The message must contain the current fixed interest rate(s). The use of the fixed interest rate sequences depends on the type of the original transaction. Thus, the presence of sequences B and E depends on subfield 1 of field 23A in sequence A as follows (Error code(s): E33)
C2
Taking into account C1:
The new fixed rates should only be used in the case of recouponing; the new notional amount should only be used in the case of a partial termination. Thus, taking into account C1: in sequence A, the presence of fields 32G and 22D and, in sequences B and E, the presence of field 37P depend on field 22B in sequence A as follows (Error code(s): E34):
C3
The second intermediary field can only be used if more than one intermediary is required. Thus, for all occurrences of fields 56a and 86a, the following rules apply (Error code(s): E35):
C4
The currency code in all amount fields must be the same (Error code(s): C02).
C5
The related reference is required in the case of an amendment or cancellation. Thus, in sequence A, the presence of field 21 depends on field 22A as follows (Error code(s): D02):
C6
In sequence A, if field 22D consists of code OTHR, field 37N must be present (Error code(s): E36).