Question

I got error message, but not sure how to get rid of it.

-- Method returns an Objective-C object with a +1 retain count (owning reference)

and

--Object allocated on line 46 is not referenced later in this execution path and has a retain count of +1 (object leaked)

for line aAA and bBB

+ ( CustConf* ) initEmptyCustConf { 
    CustConf* theObject = [[CustConf alloc] init];
    theObject.ID = 0;
    theObject.aAA= [[NSString alloc] initWithString:@""];
    theObject.Number_Ndx = 0;
    theObject.bBB = [[NSString alloc] initWithString:@""];

    return [theObject autorelease];
}

Answer 1

The [[NSString alloc] initWithString:@""]; is unnecessary. Just use @"".

Change your initEmptyCustConf to this:

+ (CustConf *) initEmptyCustConf { 
    CustConf *theObject = [[CustConf alloc] init];
    theObject.ID = 0;
    theObject.aAA = @"";
    theObject.Number_Ndx = 0;
    theObject.bBB = @"";
    return [theObject autorelease];
}