Checking for previous matched bets

I want to check if I have any matched bets on a selection at the current back price. So I am using bu_lpricedat_back_price or bu_lpricedat_(back_price) neither seem to work if I look at them in User Variables. Please can you tell me where I am going wrong.
Thanks

Hi
bu_ is unmatched
bm_ is matched

in the attached screenshot there are two £4 matched back bets on the first selection at prices 4.6 and 4.8
if the current back price is either 4.6 or 4.8 the variable returns 4.00 otherwise 0.00

This is what the log shows:

14:44:47	Checking condition and Selection's Trigger Expression bm_lpricedat_back_price is equal to 0.
14:44:47	Selection: Reiffa, initial expr.: bm_lpricedat_back_price, intermediate: bm_lpricedat_1.84, final: bm_lpricedat_1.84.

There are no matched lay bets at 1.84 so I would expect the result to be zero but it does not seem to be computing.

Thanks

Mike

Hi
tested it and it works if you identify the selection index or rank in the variable prefix:

17:48:16	Checking condition and Selection's Trigger Expression s_1_bm_lpricedat_back_price is equal to 0.
17:48:16	Selection: Spare Parts, initial expr.: s_1_bm_lpricedat_back_price, intermediate: 0.00, final: 0.00.

But the selection index or rank depend on the previous conditions so won't be known to me. Surely it should be evaluated for each valid matching selection in a trigger...

Reading the release topic on these variables it looks like you can't use back_price or any other selection variables for {price}, it has to be a number or a user variable.

OK thanks

Also make sure you ticked "Retrieve all price offers" in "General Options".

Checking for previous matched bets

Hello Guest