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Callouts allow customization of business logic similar to the CRM 3.0 callouts and CRM 4.0 plugins. Callouts can for example be used to perform validation, automatically perform a cascading operation or update calculated fields.

To implement a callout you must derive from the CWR.MSCRM.Mobile.Client.BL.CalloutBase class and override those events you want to implement your custom logic for. To execute the callout a file (callout.config) must be placed on the client, this file contains registrations with the entity and event.

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Events

The following events are available on entities:

PreCreate/PostCreate
PreUpdate/PostUpdate
PreDelete/PostDelete
PreRetrieve/PostRetrieve
PreSetState/PostSetState
PreAssign/PostAssign

In version 4.1.0.3 the following events have been added

PreAssociate/PostAssociate
PreDisassociate/PostDisassociate

The following system events are available

ApplicationStart
ApplicationStop
SyncStart
SyncComplete

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Entity Image

The PreCreate, PostCreate, PreUpdate and PostUpdate events receive a DynamicEntity image containing the properties as sent to the Create or Update method of the EntityManager.

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Callout.config

The callout.config contains the registrations for callouts to specific events (and entities). There can only be a single callout.config file this file must be placed in the root of the client and can be deployed using a Customization package.

The callout.config file uses the following schema CalloutConfig.xsd

Sample callout.config:

<callout.config>
	<callout entity="contact" event="PostCreate">
		<subscription assembly="MyCallouts.dll" class="MyCallouts.Callout">/>
	</callout>

	<callout entity="account" event="PostUpdate">
		<subscription assembly="MyCallouts.dll" class="MyCallouts.Callout/>
	</callout>
</callout.config>