Multiple persistent units

Hi,
I have one EJB project with two beans refering to two different data bases using two persistence units.
Bean A - persistence unit DB_A_unit - entity class CL_A - table DB_A
Bean B - persistence unit DB_B_unit - entity class CL_B - table DB_B
In persistence.xml I defined both units with different data source aliases.
Now I try to execute a method of bean A and get the exception:
The persistence unit is inconsistent with the database schema
The table DB_B does not exist.
If I try to execute a method of bean B I and get the exception:
The persistence unit is inconsistent with the database schema
The table DB_A does not exist.
Why does a method call in bean A affect the entity of bean B? How can I avoid this?
Thanks,
Kevin

I found a solution:
<persistence-unit name="DB_A_unit">
   <jta-data-source>a_alias</jta-data-source>
   <class>CL_A</class>
   <exclude-unlisted-classes>true</exclude-unlisted-classes>
</persistence-unit>
<persistence-unit name="DB_B_unit">
   <jta-data-source>b_alias</jta-data-source>
   <class>CL_B</class>
   <exclude-unlisted-classes>true</exclude-unlisted-classes>
</persistence-unit>

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Edited by: 994628 on Mar 18, 2013 4:39 PM
Edited by: 994628 on Mar 18, 2013 4:42 PM

>
There are 10 operating units (10 ORG_ID's) and 10 rtf templates, one for each operating unit. There are 4 different responsibilities for each ORG_ID
Eg: ORG_ID's = 11, 12, 13, 14..........etc
Eg: Responsibility = xx, yy, zz...........etc
I want to register a single concurrent program. When a user submits a request from "XX" responsibility, then the template associated with that org_id should be generated. Whichever responsibility the user is accessing from, that particular template must be shown as output.
>
interesting case for 10 OE set 10 template
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[http://img213.imageshack.us/img213/989/cic0q.jpg]
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