C1
Fields 20, 21 and 32a may not appear more than ten times (Error code(s): T10).
C2
At least one of the fields in the non-repetitive sequence (Field 72, 75 or 76) must be present (Error code(s): C10).
C3
The currency code in the amount field 32a must be the same for all occurrences of this field in the message (Error code(s): C02).