OK, I try to give more details.
The process shall calculate the amount by adding the tax for an calculated field "products.prod_vkp_customer_gross" (Calculated) by using the field "products.prod_vkp_customer_net" (value available) where values are stored.
FIND products WHERE products.prod_vkp_customer_net>0
products.prod_vkp_customer_gross=products.prod_vkp_customer_net*1.2
The problem is that the a.m. calculation just takes the first gross value and adds the gross*1,2 in the net fields. The calculated values in the net fields have the same value in all records after running the process.
