Article R221-3 of the French Code of civil enforcement procedures
In the case provided for in Article R. 221-2 and subject to the provisions of article R. 221-7, the summons to pay served on the debtor contains, under penalty of nullity: 1° A reference to the writ of execution under which the proceedings are taken, with a separate breakdown of the sums claimed in principal, costs and accrued interest, as well as an indication of the interest rate; 2° A…