2473600 - Exception Could not resolve placeholder 'keygen.crmcustomer.sap_contact_id.start'' thrown during Hybris eCommerce Platform start for CRM Integration

During start up process of OOTB Hybris eCommerce Platform we can see in the log following exception, which was thrown:

INFO [localhost-startStop-1] [DefaultSolrServerService] Stopping Solr server for instance [name: default, hostname: localhost, port: 8983]
de.hybris.platform.core.UninstantiableCoreApplicationContextException: Error creating Spring application context.
at de.hybris.platform.core.AbstractTenant.doStartupSafe(AbstractTenant.java:737)
at de.hybris.platform.core.AbstractTenant.doStartUp(AbstractTenant.java:667)
at de.hybris.platform.core.Registry.assureTenantStarted(Registry.java:648)
at de.hybris.platform.core.Registry.activateTenant(Registry.java:709)
at de.hybris.platform.core.Registry.setCurrentTenant(Registry.java:553)
at de.hybris.platform.core.Registry.activateMasterTenant(Registry.java:616)
at de.hybris.platform.core.Registry.startup(Registry.java:431)
at de.hybris.platform.spring.HybrisContextLoaderListener.startRegistry(HybrisContextLoaderListener.java:265)
at de.hybris.platform.spring.HybrisContextLoaderListener.doInitWebApplicationContext(HybrisContextLoaderListener.java:153)
at de.hybris.platform.spring.HybrisContextLoaderListener.initWebApplicationContext(HybrisContextLoaderListener.java:143)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
at de.hybris.platform.spring.HybrisContextLoaderListener.contextInitialized(HybrisContextLoaderListener.java:79)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5524)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'sapcrmb2bContactIdGenerator' defined in class path resource [sapcrmcustomerb2b-spring.xml]: Could not resolve placeholder 'keygen.crmcustomer.sap_contact_id.start' in string value "${keygen.crmcustomer.sap_contact_id.start}"; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'keygen.crmcustomer.sap_contact_id.start' in string value "${keygen.crmcustomer.sap_contact_id.start}"
at org.springframework.beans.factory.config.PlaceholderConfigurerSupport.doProcessProperties(PlaceholderConfigurerSupport.java:223)
at org.springframework.beans.factory.config.PropertyPlaceholderConfigurer.processProperties(PropertyPlaceholderConfigurer.java:222)
at org.springframework.beans.factory.config.PropertyResourceConfigurer.postProcessBeanFactory(PropertyResourceConfigurer.java:86)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:284)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:166)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:681)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:523)
at de.hybris.platform.core.HybrisContextFactory.refreshContext(HybrisContextFactory.java:95)
at de.hybris.platform.core.HybrisContextFactory$ApplicationContextFactory.build(HybrisContextFactory.java:263)
at de.hybris.platform.core.HybrisContextHolder.getApplicationInstance(HybrisContextHolder.java:87)
at de.hybris.platform.core.AbstractTenant.createCoreApplicationContext(AbstractTenant.java:695)
at de.hybris.platform.core.AbstractTenant.doStartupSafe(AbstractTenant.java:733)
... 20 more
Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'keygen.crmcustomer.sap_contact_id.start' in string value "${keygen.crmcustomer.sap_contact_id.start}"
at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:174)
at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:126)
at org.springframework.beans.factory.config.PropertyPlaceholderConfigurer$PlaceholderResolvingStringValueResolver.resolveStringValue(PropertyPlaceholderConfigurer.java:258)
at org.springframework.beans.factory.config.BeanDefinitionVisitor.resolveStringValue(BeanDefinitionVisitor.java:282)
at org.springframework.beans.factory.config.BeanDefinitionVisitor.resolveValue(BeanDefinitionVisitor.java:204)
at org.springframework.beans.factory.config.BeanDefinitionVisitor.visitPropertyValues(BeanDefinitionVisitor.java:141)
at org.springframework.beans.factory.config.BeanDefinitionVisitor.visitBeanDefinition(BeanDefinitionVisitor.java:82)
at org.springframework.beans.factory.config.PlaceholderConfigurerSupport.doProcessProperties(PlaceholderConfigurerSupport.java:220)

SAP Hybris eCommerce Platform with integration extentions to SAP CRM

KBA , CEC-SCC-INT-CRM , CRM Integration , Problem