You will only need to do this if you are using MySQL, as other databases already default to "READ-COMMITTED".

Run following queries in MySQL.



You will also need to set the following in your my.cnf/my.ini file.
transaction-isolation = READ-COMMITTED

ID Generator Tool allows one to increase value stored in Environment Variable by one. It is very often used to generate/keep a running number (e.g. application reference number).

Figure 1: ID Generator Tool Properties

FormTarget form. The form selected will be used for "Field ID" attribute below.
Field IDOptional field. You may specify a form field ID to be updated.
Record IDOptional field. You may specify a record ID explicitly, otherwise, the process instance ID will be assumed.
Environment Variable Name

Name of the environment variable to be used to keep the running number.


Determines the pattern of the generated value (e.g., "REF-?????" will yield "REF-00001")


Figure 2: ID Generator Tool Properties

Workflow Variable

The value generated can be saved into the corresponding workflow variable named here.

You will get the following warning with the name printed out (e.g. status) in the server log if you attempt to map to a non-existent Workflow Variable.

context attribute status does not exist in process context - adding new attributes to the process context is not allowed