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title: "Create a ServiceNow dynamic share using Flow"
canonical: "https://docs.perspectium.com/space/gold/1247228/Create%20a%20ServiceNow%20dynamic%20share%20using%20Flow"
format: markdown
---
Choosing  Flow Designer  for  dynamic shares  makes use of ServiceNow’s  Flow Designer  to create a flow that will send records out of your ServiceNow instance as they are created and/or updated.  Because business rules may not always trigger when records are created and/or updated (due to changes done utilizing a script where  setWorkflow  is set to false to disable running business rules), this option is  an alternative to ensure these changes are captured and shared out of your instance.  For more information, see  ServiceNow Flow Designer  and  setWorkflow .   NOTE :  Because of how flows and business rules are created in ServiceNow, dynamic shares created with  Flow Designer  cannot be changed to a dynamic share created with a  business rule  (and vice versa).  You will have to delete the dynamic share and create a new one if you want to change the dynamic share from one approach to the other. Also because of the many tables used by ServiceNow to build the  Flow Designer  engine, records will be inserted/updated in the following tables  when a flow is created/updated and the  first time  each flow is triggered: sys_hub_action_input sys_hub_action_output sys_hub_action_type_snapshot sys_hub_flow sys_hub_flow_block sys_hub_flow_input sys_hub_flow_snapshot sys_hub_step_ext_input sys_hub_step_ext_output sys_documentation   NOTE : To ensure that the tables listed only grow to reasonable size, use ServiceNow's table rotation on the tables listed above. See  ServiceNow Table Rotation  on how to apply table rotation in your ServiceNow instance. This will result in  text_index  events being created for these tables for updates by  Flow Designer . Note that if you are running flows in a domain-separated instance with versions of  New York  or earlier, it may  create these records  in each domain. This issue has been resolved as of  Orlando . The approximate updates are as follows: Action Number of Inserts/Updates Dynamic share creates flows for insert and update 28 Insert flow is triggered for the first time 9 Update flow is triggered for the first time 12 Delete a dynamic share 1 (sys_metadata_delete)   NOTE :  Once the dynamic share is created using  Flow Designer , every field, except  Active , will be read-only.  You can only use the  Active  field to enable or disable the flow created with this dynamic share to ensure replication.  Prerequisites  Y ou will need to   install DataSync for ServiceNow   and   run the Perspectium Finish Install scripts .  You will need to  set your initial Perspectium & Replicator properties .   You will also need to   create a shared queue .  (Optional) You have  user access to Flow Designer  in your ServiceNow instance. This will allow you to troubleshoot any issues creating flows but is not required as flows can be created as long as you have access to the Perspectium application and dynamic shares. Setup a dynamic share using Flow To dynamic share data with the Using Flow option, follow these steps:  Known Issues Group share will only create dynamic share with a business rule approach, choosing flow is not yet an option for group share.  The information message states a  delete  action for the flow approach. Flow designer DOES NOT support deletes.  Similar topics Contact Perspectium Support US:  1 888 620 8880 UK:  44 208 068 5953 support@perspectium.com