update two fields in a subform

[pacgoncalves]

Hello
I have a one field in the form A and i would like to update two fields in the subform B.
I have in both forms an ID thats equal.
I programmed and everything looks good on the first record but it doesn't update the second record.
I've tryed Nextrecord, recordset... but i believe i'm not puting them in the right spot.
Help please
Pedro

 

[llkhoutx]

Use the expression builder to build references to the fields that youwant to store into and store from.

 

[pacgoncalves]

1 car have N pieces.
1 piece is in N cars.
I have 1 table for register the cars bilt and here i must have to update the records Wheels = -4, windows =-4,...

Thanks