@@ -, +, @@ renewalperiod is blank/empty value period --- C4/Circulation.pm | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/C4/Circulation.pm +++ a/C4/Circulation.pm @@ -3759,7 +3759,7 @@ sub CalcDateDue { my $loanlength = GetLoanLength( $borrower->{'categorycode'}, $itemtype, $branch ); - my $length_key = ( $isrenewal and defined $loanlength->{renewalperiod} ) + my $length_key = ( $isrenewal and defined $loanlength->{renewalperiod} and $loanlength->{renewalperiod} ne q{} ) ? qq{renewalperiod} : qq{issuelength}; --