if you use the mycarenet common builders, 
the parts to fill out in the mycarenet xml part are defined in the property file. 

as with the kmehr builders , you can choose per project to use the default config , or a project specific config .
the optional parameter mycarenet.{projectName}.usedefaultproperties=false enables a project specific config.
if you  choose this , you must provide the config yourself , using the same properties as for the default,
but with the .default. replaced with .{projectName}. 

more info can be found in the javadoc, but below is an example for a pharmacy 

##############################################################################################################################################
# default configuration of mycarenet common builder                                                                                           #
#                                                                                                                                              #
##############################################################################################################################################
mycarenet.commonbuilder.class=be.ehealth.business.mycarenetcommons.builders.impl.GenericCommonBuilderImpl
#mycarenet.default.sender.physicalperson.name=sender
#mycarenet.default.sender.physicalperson.nihii.quality=pharmacy-holder
#mycarenet.default.sender.physicalperson.nihii.value=${user.nihii}
#mycarenet.default.sender.physicalperson.ssin==${user.inss}
#mycarenet.default.sender.organization.name=
#mycarenet.default.sender.organization.nihii.quality=
#mycarenet.default.sender.organization.nihii.value=
#mycarenet.default.sender.organization.cbe=
mycarenet.default.careprovider.nihii.quality=pharmacy-holder
mycarenet.default.careprovider.nihii.value=${pharmacy-holder.nihii}
mycarenet.default.careprovider.physicalperson.name=${pharmacy-holder.firstname}
#mycarenet.default.careprovider.physicalperson.nihii.quality=
#mycarenet.default.careprovider.physicalperson.nihii.value=
mycarenet.default.careprovider.physicalperson.ssin=${pharmacy-holder.ssin}
mycarenet.default.careprovider.organization.name=${pharmacy.name}
mycarenet.default.careprovider.organization.nihii.quality=pharmacy
mycarenet.default.careprovider.organization.nihii.value=${pharmacy.nihii}
mycarenet.default.siteId=