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            General Limits for Salesforce Connect OData Adapters

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            General Limits for Salesforce Connect OData Adapters

            Understand the limits for the OData 2.0, 4.0, and 4.01 adapters for Salesforce Connect.

            Required Editions

            Available in: both Salesforce Classic and Lightning Experience (not for high-data-volume external objects)

            Available in: Developer Edition

            Available for an extra cost in: Enterprise, Performance, and Unlimited Editions

            If your users or applications encounter rate limit errors for OData callouts, try one or more of the following.

            • Select High Data Volume in the external data source definition. Doing so bypasses most rate limits, but some special behaviors and limitations apply.
            • If you have Apex code that invokes the external system, modify that code to cache frequently accessed external data that seldom changes.
            • Contact Salesforce to request a higher limit.
            Maximum HTTP request size for OData 8 MB
            Maximum HTTP response size for OData 8 MB
            Maximum result set size for an OData query 16 MB
            Maximum result set size for an OData subquery 1,000 rows

            For OData 2.0 and 4.0, an org is limited to:

            • 100k new external object record IDs per hour for long-term ID mapping
            • 100k new external object record IDs per hour for short-term ID mapping

            Starting in the Spring ‘25 release, these limits are removed for OData 4.01. This functionality is available to orgs hosted on Hyperforce on a rolling basis.

            Note
            Note To view external object records in Lightning Experience, Salesforce Connect maps the external IDs of the record to Salesforce IDs. Mappings classified as short-term refer to records retrieved via Search results only. Mappings classified as long-term refer to records retrieved by all other Lightning Experience components, such as List Views. Record IDs not viewed in 365 days are subject to deletion unless the mappings have customer data attached to them.

            See Also

             
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