WRITE TO MULTIPLE DATA STORE ENTITY

I AM TAKING 3 EMPLOYEE FORMS :

1. EMPLOYEE DETAILS

2.EMPLOYEE PERSONAL DETAILS

3.EMPLOYEE ADDRESS DETAILS  

I AM CONFIGURING THIS TWO IN  ONE COMPONENT (WRITE TO TO DATA STORE ENTITY ).

I WRITE THIS CODE IN MULTIPLE DATA STORE ENTITY COMPONENT 

= {
a!entityData(
entity: cons!E_EMPLOYEE_PERSONAL_DTLS_CONSTANT,
data: { pv!E_EMPLOYEE_PERSONAL_DTLS }
),
a!entityData(
entity: cons!E_EMPLOYEE_ADDRESS_DTLS,
data: { pv!E_EMPLOYEE_ADDRESS_DTLS_INTERFACE }
)
},

THIS IS MY DATA STORE ENTITY : K_EMPLOYEE_DETAILS_DSE , I ADDED THOSE 3 ENTITYS. 

I GOT THIS ERROR : An error occurred while trying to write to the data store [K_EMPLOYEE_DETAILS_DSE].  No values have been written. Details: org.hibernate.exception.ConstraintViolationException: could not execute statement (APNX-1-4208-004)