Laying at SP on or near race start time

[Judgie]

I tried laying a "trial" lay bet to SP for £2 via Betfair and received an error message saying " error placing bet - invalid size". The object is to try to lay as near to the start time as possible so as not to have to be at home at the start of any given race...so

A/. what did I do wrong with my £2 bet to get the error message ...and
B/. how can I achieve my lay bet at SP at the start of the race please?

Thanks[/b]

[milfor]

I think the minimum is £10.

[GaryRussell]

When you place an SP lay bet you are specifying liability, not stake. The minimum allowed liability by Betfair for SP bets is £10.

[Captain Sensible]

A/. what did I do wrong with my £2 bet to get the error message ...and

Like Gary said the minimum liability has to be at least £10 for it to be matched in the SP pool


B/. how can I achieve my lay bet at SP at the start of the race please?

If you're taking SP why do you need to be laying as near to the start time as possible ? The SP odds will remain SP regardless of when you place the bet. You can specify the maximum odds you'll lay at when placing the bet via the website if you want to