Hi, i have the same problem with a condition based on single bolean field :

ASS EXT : True

This is the calculated field :

for record in self:
if x_studio_assist_ext == TRUE:
record['x_studio_primes_ttc_12'] = record.x_studio_rc_cost + record.x_studio_mr_costs + record.x_studio_dm_cost + record.x_studio_cots_assist + record.x_studio_cond_cost + record.x_studio_pj_cost
else :
record['x_studio_primes_ttc_12'] = 0

and it do not work ...

Could you help me ?

Hello

First set a boolean value, then loop through the many2many fields and do an OR operator like below:

Many2many field is - tax_ids
Boolean variable is - control_var


control_var = False

for i in record.tax_ids:
    control_var = control_var or i.name == 'test'

if control_var == True:
    //this will be your condition