Plz Help Me

[moh_mon_2005]

I have 3 tables one for local purchase orders and second for reciept voutcher and Invoice table
lpo table snd srv table are linked one to many relation


but i want to link srv table & Inv table with many to many and set the form for data entry for this case

[June7]

Many-to-many related tables requires a junction table for data entry, like:

ServiceInvoice
ServiceID (foreign key)
InvoiceID (foreign key)