Before moving Salesforce files to external storage, you need to understand how it affects data relationships, search functionality, access controls, and overall storage costs. The decision is not just technical — it has direct consequences for how your team retrieves and works with documents every day. The questions below cover everything operational teams need to evaluate before making the move.
When you move files to external storage, Salesforce replaces the actual file with a reference link — called an external object or content reference — that points to the file’s new location. The file itself no longer lives inside Salesforce. Instead, Salesforce stores metadata and a pointer, while the document resides in an external system such as Amazon S3 or SharePoint.
This distinction matters because the file and its Salesforce record remain connected through that reference. If the external storage location changes, the bucket is reconfigured, or permissions are altered, those links can break. Teams often discover this the hard way when a colleague opens a record and finds a file that no longer loads. Planning the architecture of that connection before migration is not optional — it is the foundation everything else depends on.
The most widely used external storage options for Salesforce are Amazon S3, Microsoft SharePoint, Google Drive, and Salesforce’s own Files Connect feature, which bridges Salesforce with third-party repositories. Each option connects to Salesforce through APIs or native integrations and stores files outside of Salesforce’s paid storage environment.
Amazon S3 is popular for high-volume, unstructured file storage because of its scalability and cost efficiency at scale. SharePoint suits organizations already invested in the Microsoft 365 ecosystem, particularly where document collaboration and versioning are priorities. Google Drive works well for teams operating in Google Workspace environments. The right choice depends on your existing infrastructure, the volume of files you manage, and how tightly those files need to connect to Salesforce workflows.
Moving files to external storage directly reduces your Salesforce file storage consumption, which lowers the cost of staying within your Salesforce storage limits. Salesforce charges for file storage beyond your included allocation, and those overage fees can grow quickly in document-intensive operations. Offloading files to external storage removes that pressure.
Salesforce file storage pricing can be significant for organizations managing large volumes of contracts, media assets, or transactional records. When files move to a solution like Amazon S3, the storage cost per gigabyte drops considerably, and you gain effectively unlimited capacity. The trade-off is that you now carry the cost and responsibility of managing that external environment. For most organizations handling high document volumes, the net savings are meaningful — but only if the external storage is properly governed so files do not accumulate without structure.
The biggest risks of migrating Salesforce files to external storage are broken file references, loss of contextual data, compliance gaps, and reduced visibility for end users. Each of these can create operational disruption that is harder to fix after migration than before it.
Running a pilot migration on a contained set of records before a full rollout is the most reliable way to surface these issues before they affect live operations.
External storage can significantly degrade file search and retrieval inside Salesforce if the integration is not configured carefully. Salesforce’s native search indexes files stored within the platform. Files stored externally are only searchable if the integration explicitly surfaces metadata back into Salesforce’s search index — and many basic integrations do not do this by default.
For operational teams, this is one of the most disruptive consequences of a poorly planned migration. A project manager who previously searched for a contract by name and found it instantly may now need to leave Salesforce, navigate the external storage system, and search there instead. That friction compounds across dozens of daily lookups. The solution is to ensure that file metadata — names, tags, record associations, and document types — is indexed and searchable from within Salesforce, regardless of where the file physically lives. A structured document management layer addresses this directly.
Before migrating, you need to define access controls at three levels: who can read files, who can edit or delete them, and which Salesforce records or user profiles have permission to access specific external storage locations. Failing to set this up before migration creates either over-permissioned environments where sensitive files are too accessible, or under-permissioned ones where users cannot reach files they need.
In practice, this means aligning your external storage bucket or folder permissions with your Salesforce profile and role hierarchy. If a sales rep can see a contract record in Salesforce, can they also access the corresponding file in S3? That answer needs to be deliberate, not accidental. Additionally, audit logging should be enabled in the external storage environment before migration begins, so you have a complete record of file access from day one. Compliance teams in regulated industries — real estate, automotive, retail — will expect this as a baseline.
A document management layer makes sense when raw external storage alone cannot maintain the connection between files and Salesforce records, enforce naming conventions, automate workflows, or provide reliable search and retrieval. Raw storage solves a capacity problem. A document management layer solves an operational one.
For teams managing high volumes of contracts, project files, or media assets, the gap between “files stored somewhere” and “files organized, searchable, and connected to the right records” is where productivity is lost. If your team spends time hunting for files, dealing with duplicates, or manually moving documents between systems, raw external storage will not fix that. It will just relocate the chaos to a different location. A structured approach to document workflow automation is what bridges that gap.
We built Cartularius specifically to solve the problems that emerge when organizations try to manage Salesforce files without a structured layer between their records and their storage environment. Rather than leaving teams to navigate raw external storage on their own, Cartularius connects Salesforce directly to Amazon S3 with full metadata preservation, automated file organization, and search that works from inside Salesforce — not around it.
Here is what that looks like in practice:
If you are evaluating your Salesforce file storage options and want to understand exactly what Cartularius can do for your team, explore our plans and see which edition fits your operational scale.
Install Cartularius now and experience the best Salesforce document management solution and enjoy clean and structured data and optimized processes, risk-free for 30 days.